/*!* Includes Sizzle.js    选择器，独立的库* http://sizzlejs.com/*/
(function( window, undefined ) {
//"use strict";
var// rootjQuery = jQuery(document) = $();压缩有用rootjQuery,// dom是否加载完readyList,// core_strundefined == 'undefined'core_strundefined = typeof undefined,// Use the correct document accordingly with window argument (sandbox)location = window.location,document = window.document,docElem = document.documentElement,// 接受外部对jQuery，$的改变，报讯在_jQuery，_$中，_jQuery = window.jQuery,_$ = window.$,//class2type = { '[Object String]' : 'string' , '[Object Array]' : 'array' }class2type = {},// 没有用处core_deletedIds = [],core_version = "2.0.3",// 将对象方法的地址保存在变量中，后面用call调用。/*var   core_deletedIds = [],core_version = "2.0.3",core_push = core_deletedIds.push,core_trim = core_version.trim;alert(core_push);function F(){this.pu = core_push;this.tr = core_trim;this.ar = new Array();this.df = function(){}}var f1 = new F();core_push.call(f1.ar,1,2,3,4);f1.pu.call(f1.ar,1,2,3,4)//f.ar.core_push(1,2,3,4);  //f.ar没有core_push方法alert(f1.ar.toString());var f2 = new F();alert(f2.pu === f1.pu);//TRUEalert(f2.df === f1.df);//falsealert(f2.tr === f1.tr);//TRUEalert(f2.ar === f1.ar);//falsefunction F(){this.a = 1;this.f = function(){alert(2);}}var f1 = new F();var f2 = new F();alert(f1.f == f2.f);//falsevar f1f = f1.f;function N(){this.f = f1f;}var n1 = new N();var n2 = new N();alert(n1.f == n2.f);//truealert(n1.f === n2.f);//true*/core_concat = core_deletedIds.concat,core_push = core_deletedIds.push,core_slice = core_deletedIds.slice,core_indexOf = core_deletedIds.indexOf,core_toString = class2type.toString,core_hasOwn = class2type.hasOwnProperty,core_trim = core_version.trim,// []表示任意一个，？表示0、1个，\d表示数字，*表示任意多个，.单个非回车换行的字符，\.字符点，|是或者，\d*\.| 数字加小数点或者什么都没有，[eE]科学计数法core_pnum = /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/.source,// \S是空格，按照空格分割成数组core_rnotwhite = /\S+/g,// 正则中不加g的时候，会把整体匹配到还会匹配整项，?:表示外层的括号不是子项，小括号是2个子项，//match = ['#div1',null,'div1'];  //$('#div1')rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]* | #([\w-]*))$/,// 匹配空标签<p></p>rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>|)$/,// Matches dashed string for camelizingrmsPrefix = /^-ms-/,rdashAlpha = /-([\da-z])/gi,// Used by jQuery.camelCase as callback to replace()fcamelCase = function( all, letter ) {return letter.toUpperCase();},//匿名函数全局作用域，dom加载完成执行的方法completed = function() {document.removeEventListener( "DOMContentLoaded", completed, false );window.removeEventListener( "load", completed, false );jQuery.ready();};/*function Aaa(){}Aaa.prototype.init = function(){};Aaa.prototype.css = function(){};var a1 = new Aaa();a1.init();//prototype里的方法一般用对象调用a1.css();function jQuery(){return new jQuery.prototype.init();//返回init类的对象}jQuery.prototype.init = function(){};jQuery.prototype.css = function(){};jQuery.prototype.init.prototype = jQuery.prototype;//init类的原型等于jQuery的原型，init对象就可以使用jQuery原型里的方法//外部使用jQuery().css();*/// $() == jQuery(),这个函数返回对象，
jQuery = function( selector, context ) {//jQuery.fn=jQuery.prototype={init:function(){}},fn就指向prototype,init就是prototype里面的方法，一般用类的对象来调用。//jQuery()、$()返回的是init()类的对象，并且执行了init函数里面的方法，执行初始化。//$(),jQuery()传的参数都是传给了init()方法里面去了return new jQuery.fn.init( selector, context, rootjQuery );},
jQuery.fn.init.prototype = jQuery.fn;//init类的原型等于jQuery的原型，init对象就可以使用jQuery原型里的方法jQuery.fn = jQuery.prototype = {           //给类jQuery增加静态属性fn,修改函数的prototype并增加属性和方法jquery: core_version,constructor: jQuery,//不回指就是object//$("a,b,c")都是调用的是init方法，new init(a,b,c),//$('li','ul')//选择ul下面的li,  //return new jQuery.fn.init()，init函数执行，如果有return就返回return里面的东西（return的要是引用对象，否则返回init类的实例对象）。init: function( selector, context, rootjQuery ) {var match, elem;// $(""), $(null), $(undefined), $(false) 判空if ( !selector ) {return this;//返回init函数类的对象}// $('#div1') $('.box') $('div')  $('#div1 div.box') $('<li>')  $('<li>1</li><li>2</li>')//创建字符串标签，$('li','ul')//选择ul下面的li, 都是strings类型。if ( typeof selector === "string" ) {if ( selector.charAt(0) === "<" && selector.charAt( selector.length - 1 ) === ">" && selector.length >= 3 ) {// 标签<p>，match是进来的时候定义的，拼接数组，//$('<li>')   $('<li>1</li><li>2</li>')//match = [ null, '<li>', null ];//match = [ null, '<li>1</li><li>2</li>', null ];match = [ null, selector, null ];} else {/*不是标签，$('#div1') $('.box') $('div')  $('#div1 div.box') $('<li>hello')rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]* | #([\w-]*))$/,match = null;  //$('.box') $('div')  $('#div1 div.box')match = ['#div1',null,'div1'];  //$('#div1')match = ['<li>hello','<li>',null];  //$('<li>hello')*/match = rquickExpr.exec( selector );}// 创建标签或者根据id查找，$('<li>')  $('#div1')  if ( match && (match[1] || !context) ) {//创建标签 $('<li>')if ( match[1] ) {//第二个参数context是创建标签的上下文，$('<li>',$(document))，用于iframe中，context = context instanceof jQuery ? context[0] : context;// $('<li>1</li><li>2</li>').appendTo( ' ul ' );//merge方法 把 $('<li>1</li><li>2</li>')变成json = {0 : 'li',1 : 'li',length : 2},return this就是这个json并返回出去，就可以appendTo到ul上了。$()返回你需要的任意类型this对象。jQuery.merge( this, jQuery.parseHTML(//parseHTML方法把<li>1</li><li>2</li>变成li数组[li,li]，match = [ null, '<li>1</li><li>2</li>', null ];//new的时候this指的是本类对象，match[1],context && context.nodeType ? context.ownerDocument || context : document,true) );// 添加标签并且加属性，$('<li></li>',{title : 'hi',html : 'abcd',css : {background:'red'}}).appendTo( 'ul' );//rsingleTag正则匹配单标签。<li>、<li></li>可以，<li></li><li></li>不行，isPlainObject判断第二个参数是jsonif ( rsingleTag.test( match[1] ) && jQuery.isPlainObject( context ) ) {for ( match in context ) {// {html:abcd},this[html]是一个函数，就执行这个函数this[html]('abcd'),if ( jQuery.isFunction( this[ match ] ) ) {this[ match ]( context[ match ] );// {title:'hi'}，this.attr(title,'hi')，} else {this.attr( match, context[ match ] );}}}return this;// $('#div1') ，id选择器，match = ['#div1',null,'div1'];  } else {elem = document.getElementById( match[2] );//根据id获取element,//Blackberry 4.6仅仅判断elem存在是不行的，还要判断他父节点存在if ( elem && elem.parentNode ) {// Inject the element directly into the jQuery objectthis.length = 1;this[0] = elem;//给对象添加属性名为0值为elem,this[0]设置获取值，不能通过this.0设置获取值。/*function F(a){return new init();//this是F对象}function init(a){this.length = 1;this[0] = document.getElementById("a");alert(this[0].innerHTML);return this;}var f = F();alert(f[0].innerHTML);*/}this.context = document;this.selector = selector;//'#div1'return this;}// HANDLE: $(expr, $(...))   $('.box') $('div')  $('#div1 div.box')//jquery: core_version = "2.0.3",} else if ( !context || context.jquery ) {//context不存在或者context存在且context的jquery存在，是jquery对象//( context || rootjQuery )context存在不走后面，rootjQuery  = jQuery(document),context.find()  或者  rootjQuery.find//$('ul',$(document)).find('li');走这里，$(document)是init对象有jquery属性，jquery是init方法的属性，就是判断context是不是init对象或者说jQuery对象。return ( context || rootjQuery ).find( selector );// HANDLE: $(expr, context)// (which is just equivalent to: $(context).find(expr)} else {//context存在并且context的jquery属性不存在,不是jQuery对象，构造一个jquery对象//$('ul',document).find('li');走这里//constructor: jQuery，constructor就是jQuery函数，jQuery(document).find，window.$ = jQuery;相当于$(document).find,//constructor和函数名一样，都是指的是函数地址，return this.constructor( context ).find( selector );}// selector !== "string" : $(DOMElement)，$(this)  $(document)} else if ( selector.nodeType ) {//节点都有nodeType属性this.context = this[0] = selector;this.length = 1;return this;// HANDLE: $(function)  $(function(){})//$(function(){}) 是后面的简写 $(document).ready(function(){});} else if ( jQuery.isFunction( selector ) ) {// rootjQuery = jQuery(document);return rootjQuery.ready( selector );}//$([])  $({})  $( $('#div1') ) ===  $('#div1') ，如果传的是jquery对象$('#div1') ，selector = $('#div1')，$('#div1')这个对象有selector属性，selector.selector === '#div1'，if ( selector.selector !== undefined ) {this.selector = selector.selector;//'#div1'this.context = selector.context;//document}return jQuery.makeArray( selector, this );//把类似于数组的转成真正的数组，},// 选择到的元素的字符串selector: "",// $('') 返回的new init(),是init对象，或者init方法中返回的引用对象，对象中元素的个数，length: 0,//jQuery函数原型的方法，jQuery函数对象的方法，makeArray是jQuery extend的方法// $('div')) : json对象 Object { 0: <div>, 1: <div>, 2: <div>, 3: <div>, length: 4, prevObject: Object, context: HTMLDocument → new%202.html, selector: "div" }//$('div').toArray() : Array [ <div>, <div>, <div>, <div> ]toArray: function() {//json转数组return core_slice.call( this );},// $('div').get(-1).innerHTML = '222222222'，$('div')是jQuery返回的this对象，$('div').get()返回的是div的数组，this[ num ]中括号除了数组的下标还可以代表json或者对象的属性。get: function( num ) {return num == null ?this.toArray() :( num < 0 ? this[ this.length + num ] : this[ num ] );},// Take an array of elements and push it onto the stack (returning the new matched element set)//$('div').pushStack( $('span') )   $('span').prevObject -> $('div')pushStack: function( elems ) {/*jQuery = function() {alert(1);return new jQuery.fn.init();},jQuery.fn = jQuery.prototype = {//fn是类的静态属性//能够调用jQuery原型里（constructor()、pushStack()）方法的只能是jQuery对象或者init对象:$('div')。constructor: jQuery,init: function() {},//$('div').pushStack，this是$('div')，pushStack: function() {alert(2);this.constructor();//1,  this是init对象或者jQuery对象$('div')，返回的是新的空init对象constructor();//constructor.call(window),调不了报错，},}jQuery.fn.init.prototype = jQuery.fn;var j = constructor();//window调用不了$('div').pushStack();//1,2,1, $('div')是init对象可以调用pushStack()方法o = {}o.pushStack();//o.pushStack is not a function,能够调用pushStack方法是jQuery的对象后者init对象，new jQuery.fn.init().pushStack();//2 1*///this是调用pushStack方法的对象，能够调用pushStack和constructor()方法的只有jQuery的对象后者init对象，这里this是$('div')（json格式），this.constructor()返回的是新的空参数的init对象（有jQuery原型的属性和方法以及init函数类的属性方法）var ret = jQuery.merge( this.constructor(), elems );//返回span集合，elems = $('span')ret.prevObject = this;//this = $('div')，$('span').prevObject -> $('div')ret.context = this.context;return ret;//将$('span')返回出去/*$('div').pushStack( $('span') )，pushStack()返回span，span的prevObject等于div，css('background','red')只会把span变红，end: function() {return this.prevObject || this.constructor(null);},调用end方法就是返回prevObject就实现了栈，多次调用end()，最后返回空,就不处理最后的css方法。$('div').pushStack( $('span') ).css('background','red').end().end().end().css('background','yellow');*/},//加强版的for循环，each是原型的方法，就是对象的方法，each: function( callback, args ) {return jQuery.each( this, callback, args );//这个each是jQuery.extend({})加进去的，},ready: function( fn ) {jQuery.ready.promise().done( fn );return this;},/*core_slice = core_deletedIds.slice,      core_deletedIds = [],$('div').slice(1,3)返回2.3两个div,他的prevObject = $('div')（4个div），css('background','red')就是把2个div变红，end().css('color','blue')把4个div变蓝。$('div').slice(1,3).css('background','red').end().css('color','blue');*/slice: function() {return this.pushStack( core_slice.apply( this, arguments ) );},first: function() {return this.eq( 0 );},last: function() {return this.eq( -1 );},
//$('div').eq(0).css('background','red');eq: function( i ) {var len = this.length,//4个divj = +i + ( i < 0 ? len : 0 );return this.pushStack( j >= 0 && j < len ? [ this[j] ] : [] );//返回div[0],div[0].prevObject = $('div')（4个div）,},/*var arr = ['a','b','c'];arr = $.map(arr,function(elem,i){return elem + i;});alert( arr );//[a0,b1,c2]*/map: function( callback ) {return this.pushStack( jQuery.map(this, function( elem, i ) {return callback.call( elem, i, elem );}));},end: function() {return this.prevObject || this.constructor(null);},//内部使用，把数组的方法挂载到了jQuery对象上了，push: core_push,//core_push = core_deletedIds.push,core_deletedIds = [],sort: [].sort,splice: [].splice
};//给jQuery类添加静态方法extend，给jQuery的原型添加方法就是添加对象的方法/*$.extend({     //给jQuery类加静态方法aaa : function(){alert(1);},bbb : function(){alert(2);}});$.fn.extend({     //给jQuery对象加方法aaa : function(){alert(3);},bbb : function(){alert(4);}});$.aaa();//1$.bbb();//2$().aaa();//3$().bbb();//4
$.extend();  -> this -> $（jQuery类）  -> this.aaa  ->  $.aaa()
$.fn.extend(); -> this -> $.fn（jQuery原型对象） -> this.aaa ->  $().aaa()//当写多个对象自变量的时候 , 后面的对象都是扩展到第一个对象身上var a = {};$.extend( a , { name : 'hello' } , { age : 30 } );console.log( a );//  { name : 'hello'  ,  age : 30 }   深拷贝浅拷贝*/
jQuery.extend = jQuery.fn.extend =
{function() {//extend继承方法的定义，extend就是给自变量的对象或者jQuery类jQuery对象扩展另一个对象的属性。就是涉及到深拷贝浅拷贝。var options, name, src, copy, copyIsArray, clone,
//默认目标元素是第一个参数，arguments[0]，i = 1,不做深拷贝deep = false;
//var a = {};$.extend( a , { name : 'hello',age:12 } , { ss : 30 } target = arguments[0] || {},//第一个参数i = 1,length = arguments.length,deep = false;//默认是浅拷贝/*  深拷贝var a = {};var b = {  name : { age : {nn:14} } };$.extend( true,a , b );*/if ( typeof target === "boolean" ) {//判断第一个参数是不是布尔值deep = target;//true 深拷贝target = arguments[1] || {};//目标元素是第二个参数i = 2;//目标元素是第二个参数}// 第一个元素不是对象也不是函数，是string或其他，有可能是深拷贝，设置目标元素是空对象if ( typeof target !== "object" && !jQuery.isFunction(target) ) {target = {};}// 只有一个参数，$.extend({aaa : function(){alert(1);},bbb : function(){alert(2);})，$.fn.extend({aaa : function(){alert(1);},bbb : function(){alert(2);})
});if ( length === i ) {target = this;//目标参数就是this，this是$或者$.fn，this指的是函数时候代表函数体，--i;//i=0}//多个参数，循环把每个对象赋值到第一个对象，//1.var a = {};$.extend( a , { name : 'hello',age:12 } , { ss : 30 } );target=a,deep = false,i = 1,//2.$.extend({aaa : function(){alert(1);},bbb : function(){alert(2);}),i=0,deep = false//3.1.var a = {}; var b = {  name : {age : {nn:14} } }; $.extend( true,a , b );deep = true,target=a={},i = 2for ( ; i < length; i++ ) {//1.判空，不能是$.extend( a , null , null ); 1.options是第i个json，//2.options={aaa : function(){alert(1);},bbb : function(){alert(2);}//3.1.options= {  name : { age : {nn:14} } }if ( (options = arguments[ i ]) != null ) {//1.遍历第i个json,{ name : 'hello',age:12 }for ( name in options ) {//1.target = a = {},src = a[name] = null,a[age] = null,a[ss]=null//2.$[aaa]=null=src,target=$,$[bbb]=null=src//3.1.a[name]=src=null,src = target[ name ];//1.copy = 'hello' copy=12 copy=30//2.copy=function(){alert(1);},copy=function(){alert(2);},//3.1.copy={age : {nn:14} }copy = options[ name ];// 1. $.extend( a , { name : a } )防止这种情况//2.$.extend({aaa : $,bbb : $)防止这种情况//3.1.$.extend( true,a , {name:a} )if ( target === copy ) {continue;}// 深拷贝//3.1.isPlainObject判断json键对应的值是不是对象，或者数组//copy这个键的值是对象if ( deep && copy && ( jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)) ) ) {//src = target[ name ] 如果存在，target[ name ] = jQuery.extend( deep, target[ name ], copy );if ( copyIsArray ) {copyIsArray = false;clone = src && jQuery.isArray(src) ? src : [];} else {/*3.1.3 clone=falsevar a = { name : { job : 'it' } };var b = { name : {age : {n:10}} };$.extend( true , a  , b );            src = { job : 'it' }a = { name : { job : 'it' ,{age : {n:10}}} };  */clone = src && jQuery.isPlainObject(src) ? src : {};}// 3.递归//3.1.a[name]=jQuery.extend( true, {}, {age : {nn:14} } )//3.1.2 a[name]=jQuery.extend( true, { job : 'it' }, {age : {n:10}})//3.1.2 a[age]=jQuery.extend( true, {}, {n:10} )={n:10},a={job : 'it',age : {n:10}}//3.1.3 a[name] = jQuery.extend( true, { job : 'it' }, {age : {n:10}} );   target={job : 'it'}  target[age]=jQuery.extend( deep, {}, {n:10} );target={}  target[n]=10 return{n:10},target[age]={n:10},target={job : 'it',age : {n:10}} return target，a[name]={job : 'it',age : {n:10}}target[ name ] = jQuery.extend( deep, clone, copy );//浅拷贝target[ name ] = copy;copy是一个对象的时候就是传递的地址，} else if ( copy !== undefined ) {//1.a[name] = 'hello' a[age] = 12 a[ss]=30 a={name:'hello',age:12,ss:30}//2.$[aaa]=function(){alert(1);},$[bbb]=function(){alert(2);}target[ name ] = copy;}}}}return target;
}
};
jQuery.extend({//调用extend方法，给jQuery函数增加静态方法，js中直接通过$调用，不需要jquery对象。// 唯一随机字符串，replace( /\D/g, "" )把非数字小数点变为空，例如数据缓存做唯一操作expando: "jQuery" + ( core_version + Math.random() ).replace( /\D/g, "" ),
/*
<script>
var $ = 123;
var jQuery = 456;
js源码里面有 _jQuery = window.jQuery,_$ = window.$，接受外部的改变，保存在_$ = 123，_jQuery=456
</script>
<script src="jquery-203.js"></script>
<script>
var miaov = $.noConflict(true);
</script>
*/noConflict: function( deep ) {if ( window.$ === jQuery ) {//一定相等window.$ = _$;//window.$ = 123，jQuery就放弃$了，使用miaov,}if ( deep && window.jQuery === jQuery ) {//一定相等window.jQuery = _jQuery;//window.jQuery = 456，jQuery就放弃jQuery了，使用miaov,}return jQuery;},// Is the DOM ready to be used? Set to true once it occurs.isReady: false,// A counter to track how many items to wait for before// the ready event fires. See #6781readyWait: 1,/*$.getScript('a.js',function(){//动态加载js,异步加载，有可能alert(2)先于a.js加载完});$(function(){alert(2);});-----------------------------------------$.holdReady(true);$.getScript('a.js',function(){//动态加载js,异步加载$.holdReady(false);//a.js加载完后回调函数执行，释放hold，保证先加载a.js，然后弹出alert(2)});$(function(){alert(2);});*/holdReady: function( hold ) {if ( hold ) {jQuery.readyWait++;//readyWait是将要加到jQery函数的属性，加完之后调用这个方法就可以使用这个变量，holdReady调用多次，readyWait++多次} else {jQuery.ready( true );//下面}},//$.ready()  Handle when the DOM is readyready: function( wait ) {// --jQuery.readyWait不为0就继续等if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {return;}// isReady是给jQuery类扩展的静态属性jQuery.isReady = true;// If a normal DOM Ready event fired, decrement, and wait if need beif ( wait !== true && --jQuery.readyWait > 0 ) {return;}// If there are functions bound, to executereadyList.resolveWith( document, [ jQuery ] );// Trigger any bound ready eventsif ( jQuery.fn.trigger ) {jQuery( document ).trigger("ready").off("ready");}},// See test/unit/core.js for details concerning isFunction.// Since version 1.3, DOM methods and functions like alert// aren't supported. They return false on IE (#2968).isFunction: function( obj ) {return jQuery.type(obj) === "function";},isArray: Array.isArray,isWindow: function( obj ) {// $.isWindow(window)，通过$调用。js中window有2个作用，1是充当全部对象，2是做浏览器窗口，只有window才有window属性并且等于window。如果obj是undefined、null，undefined === undefined.window=undefined，null === null.window=undefined，所以要判断obj不是undefined或者null（obj != null）。return obj != null && obj === obj.window;//undefined是等于null的，null是等于null的，undefined.window返回null，null.window返回null，},//不能用typeof,alert( typeof NaN );//numberisNumeric: function( obj ) {//parseFloat(obj) 可以转的是数字，不可以转的返回NaN，//isFinite是原生的方法，判断是不是有限的数字，alert( isFinite( Number.MAX_VALUE + Number.MAX_VALUE ) );//falsereturn !isNaN( parseFloat(obj) ) && isFinite( obj );},type: function( obj ) {if ( obj == null ) {//obj = null或者undefinedreturn String( obj );//'undefined'，'null'}//core_toString = {}.toString，//alert( {}.toString.call([]));//[object Array]这个判断类型最全//jQuery.each("Boolean Number String Function Array Date RegExp Object Error".split(" "), function(i, name) { class2type[ "[object " + name + "]" ] = name.toLowerCase(); });将[object Array]简写成arrayreturn typeof obj === "object" || typeof obj === "function" ?class2type[ core_toString.call(obj) ] || "object" :typeof obj;},//判断是否对象自变量isPlainObject: function( obj ) {//jQuery.type( obj ) !== "object"  不是基本类型//obj.nodeType 是一个dom节点，jQuery.type(dom节点)返回object,不是对象自变量，window也不是对象自变量，jQuery.type(window)返回objectif ( jQuery.type( obj ) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {return false;}//jQuery.type( window.location) 返回object,不是基本类型不是节点不是window，//有constructor属性，core_hasOwn = {}.hasOwnProperty方法,obj.constructor.prototype有没有isPrototypeOf属性，try {if ( obj.constructor &&!core_hasOwn.call( obj.constructor.prototype, "isPrototypeOf" ) ) {return false;}} catch ( e ) {return false;//狐火下执行次数过多会报错}//{},new Object(),return true;},//是否为空对象{},[],没有自身的属性和方法(有原型属性也可以遍历出来，不是空对象)isEmptyObject: function( obj ) {var name;for ( name in obj ) {return false;}return true;},error: function( msg ) {// $.error('这是错误');throw new Error( msg );},/* keepScripts = true, 可以解析script标签把 $('<li>1</li><li>2</li>')变成this = {0 : 'li',1 : 'li',length : 2}，data = [ null, '<li>1</li><li>2</li>', null ];/*var str = '<li></li><li></li>';$.parseHTML(str); 返回li的数组/*[li, li]0: li1: lilength: 2__proto__: Array(0) //var str = '<li></li><li></li><script><\/script>';$.parseHTML(str,document,true);//[li, li, script]0: li1: li2: scriptlength: 3__proto__: Array(0)//*/parseHTML: function( data, context, keepScripts ) {if ( !data || typeof data !== "string" ) {//存不存在，是不是字符串return null;}if ( typeof context === "boolean" ) {//第二个参数就是布尔值，就当第三个参数用，第二个参数是false,keepScripts = context;context = false;}context = context || document;//执行上下文只能是document,这个document可以是当前页面的也可以是iframe的，var parsed = rsingleTag.exec( data ),//判断是不是单标签<li></li>,<li></li><li></li>是多标签scripts = !keepScripts && [];// 单标签，创建这个标签，返回数组，if ( parsed ) {return [ context.createElement( parsed[1] ) ];//context是执行上下文，是document对象，创建element和getelement前面都需要这个对象来调用方法而已。}
//多标签，创建dom标签节点parsed = jQuery.buildFragment( [ data ], context, scripts );if ( scripts ) {//keepScripts=true,不删除script标签，keepScripts=false,删除script标签。jQuery( scripts ).remove();}return jQuery.merge( [], parsed.childNodes );},//json格式字符串转json,IE678不支持，parseJSON: JSON.parse,// Cross-browser xml parsing，解析xml，出了json解析还有xml解析，xml是最早的数据形式，后来才有的json,以前都是xml。parseXML: function( data ) {var xml, tmp;if ( !data || typeof data !== "string" ) {//不存在不是stringreturn null;}// Support: IE678不支持，支持IE9。IE678出错了不会进入catch,而是创建一个xml携带<parsererror>错误的信息</parsererror>try {tmp = new DOMParser();//创建解析xml的对象，最早火狐支持，后来都开始支持了。xml = tmp.parseFromString( data , "text/xml" );} catch ( e ) {xml = undefined;//data必须是完整的xml,不能是html,}if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) {jQuery.error( "Invalid XML: " + data );}return xml;},noop: function() {},// Evaluates a script in a global context，全局解析js，/*function test() {jQuery.globalEval( "var newVar = true;" )var newVar1 = true;}test();alert( newVar );alert( newVar1 );function test(){var i = eval;i('var a = 1');eval('var b = 2');window.eval('var c = 3');alert( "s"+a );alert( "s"+b );alert( "s"+c );}test();alert( a );//1alert( b );//buxingalert( c );//3*/globalEval: function( code ) {var script,indirect = eval;code = jQuery.trim( code );//去前后空格if ( code ) {// 创建script标签，加文本，加入到head中，删除script标签if ( code.indexOf("use strict") === 1 ) {script = document.createElement("script");script.text = code;document.head.appendChild( script ).parentNode.removeChild( script );} else {indirect( code );//eval来解析}}},// 把css样式转成js能够接受的，比如js不能接受横杆/*(function(){var a,b=1,c=2;//全局闭包作用域，内部都可以通过闭包链来找到这个外部变量var f = function(o){for(i in o){alert(i+"--"+o[i]());//camelCase--3}}f({camelCase: function( string ) {return b+c;},})})()*///margin-top ->  marginTop  -ms-transform -> msTransform -moz-transform -> MozTransform//rmsPrefix = /^-ms-/, rdashAlpha = /-([\da-z])/gi,   fcamelCase = function( all, letter ) { return letter.toUpperCase(); },camelCase: function( string ) {return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );},/*replace后面传递函数：rmsPrefix = /^-ms-/;rdashAlpha = /-([\da-z])/gi;fcamelCase = function( all, letter ) { alert(all);//-t,正则匹配到的整体alert(letter);//t,正则里面的子项return letter.toUpperCase(); };camelCase=function( string ) {var d = string.replace( rmsPrefix, "ms-" );//ms-transformvar g = d.replace( rdashAlpha, fcamelCase );//msTransformreturn g;},alert(camelCase('-ms-transform'));*///判断节点的名字是不是指定的名字nodeName: function( elem, name ) {return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();},// args is for 内部使用/**var arr = ['a','b','c','d'];var json = { name : 'hello' , age : 20 };$.each(json , function(i,value){//下标  每一个值alert(value);return false;//return false了,只执行一次});*/each: function( obj, callback, args ) {var value,i = 0,length = obj.length,//数组有长度，json没有长度，也有可能json里面有一个length属性，isArray = isArraylike( obj );//是不是类数组或者真正数组if ( args ) {//内部使用，平时不传if ( isArray ) {for ( ; i < length; i++ ) {value = callback.apply( obj[ i ], args );if ( value === false ) {break;}}} else {for ( i in obj ) {//遍历jsonvalue = callback.apply( obj[ i ], args );if ( value === false ) {break;}}}// A special, fast, case for the most common use of each} else {if ( isArray ) {//数组for ( ; i < length; i++ ) {//回调函数value = callback.call( obj[ i ], i, obj[ i ] );if ( value === false ) {//回调函数返回值是false就不循环了break;}}} else {//jsonfor ( i in obj ) {value = callback.call( obj[ i ], i, obj[ i ] );if ( value === false ) {break;}}}}return obj;},trim: function( text ) {return text == null ? "" : core_trim.call( text );},// 类似于数组转成真正数组/*var s = 123;console.log( $.makeArray( s ) );//[123]console.log( $.makeArray( s , {length:3} ) );//Object {3: 123, length: 4}var str = {1:1,2:2};console.log( $.makeArray( str ) );//[{1:1,2:2}]console.log( $.makeArray( str , {length:3} ) );//{3:{1:1,2:2},length: 4}*/makeArray: function( arr, results ) {var ret = results || [];if ( arr != null ) {/*Object()将基本类型转成对应的对象类型。
console.log(Object(123));//Number {[[PrimitiveValue]]: 123}
console.log(Object('abc'));//String {0: "a", 1: "b", 2: "c", length: 3, [[PrimitiveValue]]: "abc"}
console.log(Object(true));//Boolean {[[PrimitiveValue]]: true}*/if ( isArraylike( Object(arr) ) ) {//'hello'走这里，jQuery.merge( ret,typeof arr === "string" ?[ arr ] : arr);} else {//123走这里core_push.call( ret, arr );}}return ret;},/*   indexofvar arr = ['a','b','c','d'];alert( $.inArray( 'w' , arr ) ); core_indexOf = [].indexOf,          */inArray: function( elem, arr, i ) {//i是从哪里开始查return arr == null ? -1 : core_indexOf.call( arr, elem, i );},/*$.merge(['a','b'],['c','d']);//["a", "b", "c", "d"]$.merge(['a','b'],{0:'c',1:'d'});//["a", "b", "c", "d"]$.merge({0:'a',1:'b',length:2},{0:'c',1:'d'});//{0: "a", 1: "b", 2: "c", 3: "d", length: 4}$.merge({0:'a',1:'b',length:2},['c','d']);// {0: "a", 1: "b", 2: "c", 3: "d", length: 4}*/merge: function( first, second ) {var l = second.length,i = first.length,j = 0;// $.merge( ['a','b'],['c','d'] );if ( typeof l === "number" ) {//json的length不是number，for ( ; j < l; j++ ) {first[ i++ ] = second[ j ];}} else {// $.merge( ['a','b'],{0:'c',1:'d'} );while ( second[j] !== undefined ) {first[ i++ ] = second[ j++ ];//second的json的属性还必须是0.1.2}}first.length = i;return first;},/*var arr = [1,2,3,4];arr = $.grep( arr , function( n , i ){//n是每一项，i是下标return n>2;} , true );console.log( arr );//[1,2]*/grep: function( elems, callback, inv ) {var retVal,ret = [],i = 0,length = elems.length;inv = !!inv;//2个！就把undefined转成falsefor ( ; i < length; i++ ) {retVal = !!callback( elems[ i ], i );//2个！就把不是布尔类型的转成相应的布尔值if ( inv !== retVal ) {ret.push( elems[ i ] );}}return ret;},/*var arr = [1,2,3,4];arr = $.map( arr , function(n){return [n+1];} );console.log( arr );//[2,3,4,5]*/map: function( elems, callback, arg ) {var value,i = 0,length = elems.length,isArray = isArraylike( elems ),ret = [];if ( isArray ) {for ( ; i < length; i++ ) {value = callback( elems[ i ], i, arg );if ( value != null ) {ret[ ret.length ] = value;//末尾追加}}} else {//jsonfor ( i in elems ) {value = callback( elems[ i ], i, arg );if ( value != null ) {ret[ ret.length ] = value;}}}// ret = [[2],[3],[4],[5]]return core_concat.apply( [], ret );//[2,3,4,5]},// A global GUID counter for objectsguid: 1,/*function show(n1,n2){alert(n1);alert(n2);alert(this);}show();//window$.proxy(show,document)(3,4);//改变show的this是document,执行，$.proxy(show,document,3)(4);//改变show的this是document,执行，$.proxy(show,document,3)//不执行*/proxy: function( fn, context ) {var tmp, args, proxy;//var obj = {show : function(){}};//$(document).click( $.proxy(obj,'show') );//让obj下面的show指向objif ( typeof context === "string" ) {context = fn;//context = objfn = tmp;//fn = show//变成了$.proxy(show,obj)，统一参数格式}if ( !jQuery.isFunction( fn ) ) {return undefined;}// 第3个参数3,args = core_slice.call( arguments, 2 );proxy = function() {//返回的是函数，后面小括号表示这个函数体执行，return fn.apply( context || this, args.concat( core_slice.call( arguments ) ) );//[].slice.call( arguments )把arguments转成真正的数组，arguments是后面的参数};// 后期处理事件proxy.guid = fn.guid = fn.guid || jQuery.guid++;return proxy;},// 内部使用，/*alert( $('#div1').css('width') );$('#div1').css('background','yellow');$('#div1').css(''yellow');$('#div1').css('width','300px');$('#div1').css({ background : 'yellow' , width : '300px' });*//*attr: function( 'title', 'hello' ) {jQuery.access( this, jQuery.attr, 'title', 'hello', arguments.length > 1 );}*/access: function( elems, fn, key, value, chainable, emptyGet, raw ) {//elems=$('#div1')，fn是回调函数，key=background，value=yellow，chainable为真表示设置值为假表示设置值，var i = 0,length = elems.length,bulk = key == null;///没有key就是true，//设置多组值：..css({ background : 'yellow' , width : '300px' })//是object就是json,if ( jQuery.type( key ) === "object" ) {chainable = true;for ( i in key ) {jQuery.access( elems, fn, i, key[i], true, emptyGet, raw );}// 设置一组值：$('#div1').css('width','300px');} else if ( value !== undefined ) {chainable = true;///不设置就是undefinedif ( !jQuery.isFunction( value ) ) {raw = true;}if ( bulk ) {///没有keyif ( raw ) {///不是函数fn.call( elems, value );fn = null;} else {///是函数，函数现在不执行，套上一层，里面return时候调用函数bulk = fn;fn = function( elem, key, value ) {return bulk.call( jQuery( elem ), value );};}}if ( fn ) {for ( ; i < length; i++ ) {//jQuery.attr()fn( elems[i], key, raw ? value : value.call( elems[i], i, fn( elems[i], key ) ) );}}}//chainable是真就是设置值，return chainable ?elems :// Getsbulk ?///有没有key值fn.call( elems ) :///有key就调用length ? fn( elems[0], key ) : emptyGet;///又要分长度},now: Date.now,/*alert( $('#div1').width() );//display:none还是获取到了，利用的是swap方法alert( $('#div1').get(0).offsetWidth );//原生的宽度方法，display:none就获取不到了    */swap: function( elem, options, callback, args ) {var ret, name,old = {};//老的样式// Remember the old values, and insert the new onesfor ( name in options ) {old[ name ] = elem.style[ name ];//存老的样式elem.style[ name ] = options[ name ];//设置新的样式}ret = callback.apply( elem, args || [] );//调用函数获取想要的属性值// Revert the old valuesfor ( name in options ) {elem.style[ name ] = old[ name ];//样式还原}return ret;}
});
}
/* $(function(){}) -->  rootjQuery.ready(function(){})  -->  $(document).ready(function(){})  --> $().ready(function(){}) --> jQuery.ready.promise().done( function(){} )  ----------->  addEventListener --> jQuery.ready() --> readyList.resolveWith( document, [ jQuery ] );----------->  readyList.promise( obj ) -->
ready: function( fn ) {jQuery.ready.promise().done( fn );return this;
},  */
jQuery.ready.promise = function( obj ) {if ( !readyList ) {//是否加载完，刚开始是false,只走进来一次，readyList = jQuery.Deferred();if ( document.readyState === "complete" ) {//dom加载完document的属性是完成状态，// Handle it asynchronously to allow scripts the opportunity to delay readysetTimeout( jQuery.ready );} else {/*匿名函数全局作用域，dom加载完成执行的方法completed = function() {document.removeEventListener( "DOMContentLoaded", completed, false );window.removeEventListener( "load", completed, false );jQuery.ready();jQuery.ready() --> readyList.resolveWith( document, [ jQuery ] );};*/document.addEventListener( "DOMContentLoaded", completed, false );// A fallback to window.onload, that will always workwindow.addEventListener( "load", completed, false );}}return readyList.promise( obj );
};// Populate the class2type map
jQuery.each("Boolean Number String Function Array Date RegExp Object Error".split(" "), function(i, name) {class2type[ "[object " + name + "]" ] = name.toLowerCase();
});//是不是数组，特殊数组，带length属性的json
function isArraylike( obj ) {var length = obj.length,type = jQuery.type( obj );if ( jQuery.isWindow( obj ) ) {//是不是window，下面的判断有可能window也满足，return false;}if ( obj.nodeType === 1 && length ) {//一组元素节点是类数组return true;}//type !== "function"不加这个，那么有length属性的函数就进去了return type === "array" || type !== "function" &&( length === 0 ||typeof length === "number" && length > 0 && ( length - 1 ) in obj );
}// All jQuery objects should point back to these
rootjQuery = jQuery(document);
/Sizzle BEGIN
{
/*!* Sizzle CSS Selector Engine v1.9.4-pre* http://sizzlejs.com/** Copyright 2013 jQuery Foundation, Inc. and other contributors* Released under the MIT license* http://jquery.org/license** Date: 2013-06-03*/
(function( window, undefined ) {var i,support,cachedruns,Expr,getText,isXML,compile,outermostContext,sortInput,// Local document varssetDocument,document,docElem,documentIsHTML,rbuggyQSA,rbuggyMatches,matches,contains,// Instance-specific dataexpando = "sizzle" + -(new Date()),preferredDoc = window.document,dirruns = 0,done = 0,classCache = createCache(),tokenCache = createCache(),compilerCache = createCache(),hasDuplicate = false,sortOrder = function( a, b ) {if ( a === b ) {hasDuplicate = true;return 0;}return 0;},// General-purpose constantsstrundefined = typeof undefined,MAX_NEGATIVE = 1 << 31,// Instance methodshasOwn = ({}).hasOwnProperty,arr = [],pop = arr.pop,push_native = arr.push,push = arr.push,slice = arr.slice,// Use a stripped-down indexOf if we can't use a native oneindexOf = arr.indexOf || function( elem ) {var i = 0,len = this.length;for ( ; i < len; i++ ) {if ( this[i] === elem ) {return i;}}return -1;},booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",// Regular expressions// Whitespace characters http://www.w3.org/TR/css3-selectors/#whitespacewhitespace = "[\\x20\\t\\r\\n\\f]",// http://www.w3.org/TR/css3-syntax/#characterscharacterEncoding = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",// Loosely modeled on CSS identifier characters// An unquoted value should be a CSS identifier http://www.w3.org/TR/css3-selectors/#attribute-selectors// Proper syntax: http://www.w3.org/TR/CSS21/syndata.html#value-def-identifieridentifier = characterEncoding.replace( "w", "w#" ),// Acceptable operators http://www.w3.org/TR/selectors/#attribute-selectorsattributes = "\\[" + whitespace + "*(" + characterEncoding + ")" + whitespace +"*(?:([*^$|!~]?=)" + whitespace + "*(?:(['\"])((?:\\\\.|[^\\\\])*?)\\3|(" + identifier + ")|)|)" + whitespace + "*\\]",// Prefer arguments quoted,//   then not containing pseudos/brackets,//   then attribute selectors/non-parenthetical expressions,//   then anything else// These preferences are here to reduce the number of selectors//   needing tokenize in the PSEUDO preFilterpseudos = ":(" + characterEncoding + ")(?:\\(((['\"])((?:\\\\.|[^\\\\])*?)\\3|((?:\\\\.|[^\\\\()[\\]]|" + attributes.replace( 3, 8 ) + ")*)|.*)\\)|)",// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latterrtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),rsibling = new RegExp( whitespace + "*[+~]" ),rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*)" + whitespace + "*\\]", "g" ),rpseudo = new RegExp( pseudos ),ridentifier = new RegExp( "^" + identifier + "$" ),matchExpr = {"ID": new RegExp( "^#(" + characterEncoding + ")" ),"CLASS": new RegExp( "^\\.(" + characterEncoding + ")" ),"TAG": new RegExp( "^(" + characterEncoding.replace( "w", "w*" ) + ")" ),"ATTR": new RegExp( "^" + attributes ),"PSEUDO": new RegExp( "^" + pseudos ),"CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +"*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +"*(\\d+)|))" + whitespace + "*\\)|)", "i" ),"bool": new RegExp( "^(?:" + booleans + ")$", "i" ),// For use in libraries implementing .is()// We use this for POS matching in `select`"needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )},rnative = /^[^{]+\{\s*\[native \w/,// Easily-parseable/retrievable ID or TAG or CLASS selectorsrquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,rinputs = /^(?:input|select|textarea|button)$/i,rheader = /^h\d$/i,rescape = /'|\\/g,// CSS escapes http://www.w3.org/TR/CSS21/syndata.html#escaped-charactersrunescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),funescape = function( _, escaped, escapedWhitespace ) {var high = "0x" + escaped - 0x10000;// NaN means non-codepoint// Support: Firefox// Workaround erroneous numeric interpretation of +"0x"return high !== high || escapedWhitespace ?escaped :// BMP codepointhigh < 0 ?String.fromCharCode( high + 0x10000 ) :// Supplemental Plane codepoint (surrogate pair)String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );};// Optimize for push.apply( _, NodeList )
try {push.apply((arr = slice.call( preferredDoc.childNodes )),preferredDoc.childNodes);// Support: Android<4.0// Detect silently failing push.applyarr[ preferredDoc.childNodes.length ].nodeType;
} catch ( e ) {push = { apply: arr.length ?// Leverage slice if possiblefunction( target, els ) {push_native.apply( target, slice.call(els) );} :// Support: IE<9// Otherwise append directlyfunction( target, els ) {var j = target.length,i = 0;// Can't trust NodeList.lengthwhile ( (target[j++] = els[i++]) ) {}target.length = j - 1;}};
}function Sizzle( selector, context, results, seed ) {var match, elem, m, nodeType,// QSA varsi, groups, old, nid, newContext, newSelector;if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {setDocument( context );}context = context || document;results = results || [];if ( !selector || typeof selector !== "string" ) {return results;}if ( (nodeType = context.nodeType) !== 1 && nodeType !== 9 ) {return [];}if ( documentIsHTML && !seed ) {// Shortcutsif ( (match = rquickExpr.exec( selector )) ) {// Speed-up: Sizzle("#ID")if ( (m = match[1]) ) {if ( nodeType === 9 ) {elem = context.getElementById( m );// Check parentNode to catch when Blackberry 4.6 returns// nodes that are no longer in the document #6963if ( elem && elem.parentNode ) {// Handle the case where IE, Opera, and Webkit return items// by name instead of IDif ( elem.id === m ) {results.push( elem );return results;}} else {return results;}} else {// Context is not a documentif ( context.ownerDocument && (elem = context.ownerDocument.getElementById( m )) &&contains( context, elem ) && elem.id === m ) {results.push( elem );return results;}}// Speed-up: Sizzle("TAG")} else if ( match[2] ) {push.apply( results, context.getElementsByTagName( selector ) );return results;// Speed-up: Sizzle(".CLASS")} else if ( (m = match[3]) && support.getElementsByClassName && context.getElementsByClassName ) {push.apply( results, context.getElementsByClassName( m ) );return results;}}// QSA pathif ( support.qsa && (!rbuggyQSA || !rbuggyQSA.test( selector )) ) {nid = old = expando;newContext = context;newSelector = nodeType === 9 && selector;// qSA works strangely on Element-rooted queries// We can work around this by specifying an extra ID on the root// and working up from there (Thanks to Andrew Dupont for the technique)// IE 8 doesn't work on object elementsif ( nodeType === 1 && context.nodeName.toLowerCase() !== "object" ) {groups = tokenize( selector );if ( (old = context.getAttribute("id")) ) {nid = old.replace( rescape, "\\$&" );} else {context.setAttribute( "id", nid );}nid = "[id='" + nid + "'] ";i = groups.length;while ( i-- ) {groups[i] = nid + toSelector( groups[i] );}newContext = rsibling.test( selector ) && context.parentNode || context;newSelector = groups.join(",");}if ( newSelector ) {try {push.apply( results,newContext.querySelectorAll( newSelector ));return results;} catch(qsaError) {} finally {if ( !old ) {context.removeAttribute("id");}}}}}// All othersreturn select( selector.replace( rtrim, "$1" ), context, results, seed );
}/*** Create key-value caches of limited size* @returns {Function(string, Object)} Returns the Object data after storing it on itself with* property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)*   deleting the oldest entry*/
function createCache() {var keys = [];function cache( key, value ) {// Use (key + " ") to avoid collision with native prototype properties (see Issue #157)if ( keys.push( key += " " ) > Expr.cacheLength ) {// Only keep the most recent entriesdelete cache[ keys.shift() ];}return (cache[ key ] = value);}return cache;
}/*** Mark a function for special use by Sizzle* @param {Function} fn The function to mark*/
function markFunction( fn ) {fn[ expando ] = true;return fn;
}/*** Support testing using an element* @param {Function} fn Passed the created div and expects a boolean result*/
function assert( fn ) {var div = document.createElement("div");try {return !!fn( div );} catch (e) {return false;} finally {// Remove from its parent by defaultif ( div.parentNode ) {div.parentNode.removeChild( div );}// release memory in IEdiv = null;}
}/*** Adds the same handler for all of the specified attrs* @param {String} attrs Pipe-separated list of attributes* @param {Function} handler The method that will be applied*/
function addHandle( attrs, handler ) {var arr = attrs.split("|"),i = attrs.length;while ( i-- ) {Expr.attrHandle[ arr[i] ] = handler;}
}/*** Checks document order of two siblings* @param {Element} a* @param {Element} b* @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b*/
function siblingCheck( a, b ) {var cur = b && a,diff = cur && a.nodeType === 1 && b.nodeType === 1 &&( ~b.sourceIndex || MAX_NEGATIVE ) -( ~a.sourceIndex || MAX_NEGATIVE );// Use IE sourceIndex if available on both nodesif ( diff ) {return diff;}// Check if b follows aif ( cur ) {while ( (cur = cur.nextSibling) ) {if ( cur === b ) {return -1;}}}return a ? 1 : -1;
}/*** Returns a function to use in pseudos for input types* @param {String} type*/
function createInputPseudo( type ) {return function( elem ) {var name = elem.nodeName.toLowerCase();return name === "input" && elem.type === type;};
}/*** Returns a function to use in pseudos for buttons* @param {String} type*/
function createButtonPseudo( type ) {return function( elem ) {var name = elem.nodeName.toLowerCase();return (name === "input" || name === "button") && elem.type === type;};
}/*** Returns a function to use in pseudos for positionals* @param {Function} fn*/
function createPositionalPseudo( fn ) {return markFunction(function( argument ) {argument = +argument;return markFunction(function( seed, matches ) {var j,matchIndexes = fn( [], seed.length, argument ),i = matchIndexes.length;// Match elements found at the specified indexeswhile ( i-- ) {if ( seed[ (j = matchIndexes[i]) ] ) {seed[j] = !(matches[j] = seed[j]);}}});});
}/*** Detect xml* @param {Element|Object} elem An element or a document*/
isXML = Sizzle.isXML = function( elem ) {// documentElement is verified for cases where it doesn't yet exist// (such as loading iframes in IE - #4833)var documentElement = elem && (elem.ownerDocument || elem).documentElement;return documentElement ? documentElement.nodeName !== "HTML" : false;
};// Expose support vars for convenience
support = Sizzle.support = {};/*** Sets document-related variables once based on the current document* @param {Element|Object} [doc] An element or document object to use to set the document* @returns {Object} Returns the current document*/
setDocument = Sizzle.setDocument = function( node ) {var doc = node ? node.ownerDocument || node : preferredDoc,parent = doc.defaultView;// If no document and documentElement is available, returnif ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {return document;}// Set our documentdocument = doc;docElem = doc.documentElement;// Support testsdocumentIsHTML = !isXML( doc );// Support: IE>8// If iframe document is assigned to "document" variable and if iframe has been reloaded,// IE will throw "permission denied" error when accessing "document" variable, see jQuery #13936// IE6-8 do not support the defaultView property so parent will be undefinedif ( parent && parent.attachEvent && parent !== parent.top ) {parent.attachEvent( "onbeforeunload", function() {setDocument();});}/* Attributes---------------------------------------------------------------------- */// Support: IE<8// Verify that getAttribute really returns attributes and not properties (excepting IE8 booleans)support.attributes = assert(function( div ) {div.className = "i";return !div.getAttribute("className");});/* getElement(s)By*---------------------------------------------------------------------- */// Check if getElementsByTagName("*") returns only elementssupport.getElementsByTagName = assert(function( div ) {div.appendChild( doc.createComment("") );return !div.getElementsByTagName("*").length;});// Check if getElementsByClassName can be trustedsupport.getElementsByClassName = assert(function( div ) {div.innerHTML = "<div class='a'></div><div class='a i'></div>";// Support: Safari<4// Catch class over-cachingdiv.firstChild.className = "i";// Support: Opera<10// Catch gEBCN failure to find non-leading classesreturn div.getElementsByClassName("i").length === 2;});// Support: IE<10// Check if getElementById returns elements by name// The broken getElementById methods don't pick up programatically-set names,// so use a roundabout getElementsByName testsupport.getById = assert(function( div ) {docElem.appendChild( div ).id = expando;return !doc.getElementsByName || !doc.getElementsByName( expando ).length;});// ID find and filterif ( support.getById ) {Expr.find["ID"] = function( id, context ) {if ( typeof context.getElementById !== strundefined && documentIsHTML ) {var m = context.getElementById( id );// Check parentNode to catch when Blackberry 4.6 returns// nodes that are no longer in the document #6963return m && m.parentNode ? [m] : [];}};Expr.filter["ID"] = function( id ) {var attrId = id.replace( runescape, funescape );return function( elem ) {return elem.getAttribute("id") === attrId;};};} else {// Support: IE6/7// getElementById is not reliable as a find shortcutdelete Expr.find["ID"];Expr.filter["ID"] =  function( id ) {var attrId = id.replace( runescape, funescape );return function( elem ) {var node = typeof elem.getAttributeNode !== strundefined && elem.getAttributeNode("id");return node && node.value === attrId;};};}// TagExpr.find["TAG"] = support.getElementsByTagName ?function( tag, context ) {if ( typeof context.getElementsByTagName !== strundefined ) {return context.getElementsByTagName( tag );}} :function( tag, context ) {var elem,tmp = [],i = 0,results = context.getElementsByTagName( tag );// Filter out possible commentsif ( tag === "*" ) {while ( (elem = results[i++]) ) {if ( elem.nodeType === 1 ) {tmp.push( elem );}}return tmp;}return results;};// ClassExpr.find["CLASS"] = support.getElementsByClassName && function( className, context ) {if ( typeof context.getElementsByClassName !== strundefined && documentIsHTML ) {return context.getElementsByClassName( className );}};/* QSA/matchesSelector---------------------------------------------------------------------- */// QSA and matchesSelector support// matchesSelector(:active) reports false when true (IE9/Opera 11.5)rbuggyMatches = [];// qSa(:focus) reports false when true (Chrome 21)// We allow this because of a bug in IE8/9 that throws an error// whenever `document.activeElement` is accessed on an iframe// So, we allow :focus to pass through QSA all the time to avoid the IE error// See http://bugs.jquery.com/ticket/13378rbuggyQSA = [];if ( (support.qsa = rnative.test( doc.querySelectorAll )) ) {// Build QSA regex// Regex strategy adopted from Diego Periniassert(function( div ) {// Select is set to empty string on purpose// This is to test IE's treatment of not explicitly// setting a boolean content attribute,// since its presence should be enough// http://bugs.jquery.com/ticket/12359div.innerHTML = "<select><option selected=''></option></select>";// Support: IE8// Boolean attributes and "value" are not treated correctlyif ( !div.querySelectorAll("[selected]").length ) {rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );}// Webkit/Opera - :checked should return selected option elements// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked// IE8 throws error here and will not see later testsif ( !div.querySelectorAll(":checked").length ) {rbuggyQSA.push(":checked");}});assert(function( div ) {// Support: Opera 10-12/IE8// ^= $= *= and empty values// Should not select anything// Support: Windows 8 Native Apps// The type attribute is restricted during .innerHTML assignmentvar input = doc.createElement("input");input.setAttribute( "type", "hidden" );div.appendChild( input ).setAttribute( "t", "" );if ( div.querySelectorAll("[t^='']").length ) {rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );}// FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)// IE8 throws error here and will not see later testsif ( !div.querySelectorAll(":enabled").length ) {rbuggyQSA.push( ":enabled", ":disabled" );}// Opera 10-11 does not throw on post-comma invalid pseudosdiv.querySelectorAll("*,:x");rbuggyQSA.push(",.*:");});}if ( (support.matchesSelector = rnative.test( (matches = docElem.webkitMatchesSelector ||docElem.mozMatchesSelector ||docElem.oMatchesSelector ||docElem.msMatchesSelector) )) ) {assert(function( div ) {// Check to see if it's possible to do matchesSelector// on a disconnected node (IE 9)support.disconnectedMatch = matches.call( div, "div" );// This should fail with an exception// Gecko does not error, returns false insteadmatches.call( div, "[s!='']:x" );rbuggyMatches.push( "!=", pseudos );});}rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );/* Contains---------------------------------------------------------------------- */// Element contains another// Purposefully does not implement inclusive descendent// As in, an element does not contain itselfcontains = rnative.test( docElem.contains ) || docElem.compareDocumentPosition ?function( a, b ) {var adown = a.nodeType === 9 ? a.documentElement : a,bup = b && b.parentNode;return a === bup || !!( bup && bup.nodeType === 1 && (adown.contains ?adown.contains( bup ) :a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16));} :function( a, b ) {if ( b ) {while ( (b = b.parentNode) ) {if ( b === a ) {return true;}}}return false;};/* Sorting---------------------------------------------------------------------- */// Document order sortingsortOrder = docElem.compareDocumentPosition ?function( a, b ) {// Flag for duplicate removalif ( a === b ) {hasDuplicate = true;return 0;}var compare = b.compareDocumentPosition && a.compareDocumentPosition && a.compareDocumentPosition( b );if ( compare ) {// Disconnected nodesif ( compare & 1 ||(!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {// Choose the first element that is related to our preferred documentif ( a === doc || contains(preferredDoc, a) ) {return -1;}if ( b === doc || contains(preferredDoc, b) ) {return 1;}// Maintain original orderreturn sortInput ?( indexOf.call( sortInput, a ) - indexOf.call( sortInput, b ) ) :0;}return compare & 4 ? -1 : 1;}// Not directly comparable, sort on existence of methodreturn a.compareDocumentPosition ? -1 : 1;} :function( a, b ) {var cur,i = 0,aup = a.parentNode,bup = b.parentNode,ap = [ a ],bp = [ b ];// Exit early if the nodes are identicalif ( a === b ) {hasDuplicate = true;return 0;// Parentless nodes are either documents or disconnected} else if ( !aup || !bup ) {return a === doc ? -1 :b === doc ? 1 :aup ? -1 :bup ? 1 :sortInput ?( indexOf.call( sortInput, a ) - indexOf.call( sortInput, b ) ) :0;// If the nodes are siblings, we can do a quick check} else if ( aup === bup ) {return siblingCheck( a, b );}// Otherwise we need full lists of their ancestors for comparisoncur = a;while ( (cur = cur.parentNode) ) {ap.unshift( cur );}cur = b;while ( (cur = cur.parentNode) ) {bp.unshift( cur );}// Walk down the tree looking for a discrepancywhile ( ap[i] === bp[i] ) {i++;}return i ?// Do a sibling check if the nodes have a common ancestorsiblingCheck( ap[i], bp[i] ) :// Otherwise nodes in our document sort firstap[i] === preferredDoc ? -1 :bp[i] === preferredDoc ? 1 :0;};return doc;
};Sizzle.matches = function( expr, elements ) {return Sizzle( expr, null, null, elements );
};Sizzle.matchesSelector = function( elem, expr ) {// Set document vars if neededif ( ( elem.ownerDocument || elem ) !== document ) {setDocument( elem );}// Make sure that attribute selectors are quotedexpr = expr.replace( rattributeQuotes, "='$1']" );if ( support.matchesSelector && documentIsHTML &&( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&( !rbuggyQSA     || !rbuggyQSA.test( expr ) ) ) {try {var ret = matches.call( elem, expr );// IE 9's matchesSelector returns false on disconnected nodesif ( ret || support.disconnectedMatch ||// As well, disconnected nodes are said to be in a document// fragment in IE 9elem.document && elem.document.nodeType !== 11 ) {return ret;}} catch(e) {}}return Sizzle( expr, document, null, [elem] ).length > 0;
};Sizzle.contains = function( context, elem ) {// Set document vars if neededif ( ( context.ownerDocument || context ) !== document ) {setDocument( context );}return contains( context, elem );
};Sizzle.attr = function( elem, name ) {// Set document vars if neededif ( ( elem.ownerDocument || elem ) !== document ) {setDocument( elem );}var fn = Expr.attrHandle[ name.toLowerCase() ],// Don't get fooled by Object.prototype properties (jQuery #13807)val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?fn( elem, name, !documentIsHTML ) :undefined;return val === undefined ?support.attributes || !documentIsHTML ?elem.getAttribute( name ) :(val = elem.getAttributeNode(name)) && val.specified ?val.value :null :val;
};Sizzle.error = function( msg ) {throw new Error( "Syntax error, unrecognized expression: " + msg );
};/*** Document sorting and removing duplicates* @param {ArrayLike} results*/
Sizzle.uniqueSort = function( results ) {var elem,duplicates = [],j = 0,i = 0;// Unless we *know* we can detect duplicates, assume their presencehasDuplicate = !support.detectDuplicates;sortInput = !support.sortStable && results.slice( 0 );results.sort( sortOrder );if ( hasDuplicate ) {while ( (elem = results[i++]) ) {if ( elem === results[ i ] ) {j = duplicates.push( i );}}while ( j-- ) {results.splice( duplicates[ j ], 1 );}}return results;
};/*** Utility function for retrieving the text value of an array of DOM nodes* @param {Array|Element} elem*/
getText = Sizzle.getText = function( elem ) {var node,ret = "",i = 0,nodeType = elem.nodeType;if ( !nodeType ) {// If no nodeType, this is expected to be an arrayfor ( ; (node = elem[i]); i++ ) {// Do not traverse comment nodesret += getText( node );}} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {// Use textContent for elements// innerText usage removed for consistency of new lines (see #11153)if ( typeof elem.textContent === "string" ) {return elem.textContent;} else {// Traverse its childrenfor ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {ret += getText( elem );}}} else if ( nodeType === 3 || nodeType === 4 ) {return elem.nodeValue;}// Do not include comment or processing instruction nodesreturn ret;
};Expr = Sizzle.selectors = {// Can be adjusted by the usercacheLength: 50,createPseudo: markFunction,match: matchExpr,attrHandle: {},find: {},relative: {">": { dir: "parentNode", first: true }," ": { dir: "parentNode" },"+": { dir: "previousSibling", first: true },"~": { dir: "previousSibling" }},preFilter: {"ATTR": function( match ) {match[1] = match[1].replace( runescape, funescape );// Move the given value to match[3] whether quoted or unquotedmatch[3] = ( match[4] || match[5] || "" ).replace( runescape, funescape );if ( match[2] === "~=" ) {match[3] = " " + match[3] + " ";}return match.slice( 0, 4 );},"CHILD": function( match ) {/* matches from matchExpr["CHILD"]1 type (only|nth|...)2 what (child|of-type)3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)4 xn-component of xn+y argument ([+-]?\d*n|)5 sign of xn-component6 x of xn-component7 sign of y-component8 y of y-component*/match[1] = match[1].toLowerCase();if ( match[1].slice( 0, 3 ) === "nth" ) {// nth-* requires argumentif ( !match[3] ) {Sizzle.error( match[0] );}// numeric x and y parameters for Expr.filter.CHILD// remember that false/true cast respectively to 0/1match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );// other types prohibit arguments} else if ( match[3] ) {Sizzle.error( match[0] );}return match;},"PSEUDO": function( match ) {var excess,unquoted = !match[5] && match[2];if ( matchExpr["CHILD"].test( match[0] ) ) {return null;}// Accept quoted arguments as-isif ( match[3] && match[4] !== undefined ) {match[2] = match[4];// Strip excess characters from unquoted arguments} else if ( unquoted && rpseudo.test( unquoted ) &&// Get excess from tokenize (recursively)(excess = tokenize( unquoted, true )) &&// advance to the next closing parenthesis(excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {// excess is a negative indexmatch[0] = match[0].slice( 0, excess );match[2] = unquoted.slice( 0, excess );}// Return only captures needed by the pseudo filter method (type and argument)return match.slice( 0, 3 );}},filter: {"TAG": function( nodeNameSelector ) {var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();return nodeNameSelector === "*" ?function() { return true; } :function( elem ) {return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;};},"CLASS": function( className ) {var pattern = classCache[ className + " " ];return pattern ||(pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&classCache( className, function( elem ) {return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== strundefined && elem.getAttribute("class") || "" );});},"ATTR": function( name, operator, check ) {return function( elem ) {var result = Sizzle.attr( elem, name );if ( result == null ) {return operator === "!=";}if ( !operator ) {return true;}result += "";return operator === "=" ? result === check :operator === "!=" ? result !== check :operator === "^=" ? check && result.indexOf( check ) === 0 :operator === "*=" ? check && result.indexOf( check ) > -1 :operator === "$=" ? check && result.slice( -check.length ) === check :operator === "~=" ? ( " " + result + " " ).indexOf( check ) > -1 :operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :false;};},"CHILD": function( type, what, argument, first, last ) {var simple = type.slice( 0, 3 ) !== "nth",forward = type.slice( -4 ) !== "last",ofType = what === "of-type";return first === 1 && last === 0 ?// Shortcut for :nth-*(n)function( elem ) {return !!elem.parentNode;} :function( elem, context, xml ) {var cache, outerCache, node, diff, nodeIndex, start,dir = simple !== forward ? "nextSibling" : "previousSibling",parent = elem.parentNode,name = ofType && elem.nodeName.toLowerCase(),useCache = !xml && !ofType;if ( parent ) {// :(first|last|only)-(child|of-type)if ( simple ) {while ( dir ) {node = elem;while ( (node = node[ dir ]) ) {if ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) {return false;}}// Reverse direction for :only-* (if we haven't yet done so)start = dir = type === "only" && !start && "nextSibling";}return true;}start = [ forward ? parent.firstChild : parent.lastChild ];// non-xml :nth-child(...) stores cache data on `parent`if ( forward && useCache ) {// Seek `elem` from a previously-cached indexouterCache = parent[ expando ] || (parent[ expando ] = {});cache = outerCache[ type ] || [];nodeIndex = cache[0] === dirruns && cache[1];diff = cache[0] === dirruns && cache[2];node = nodeIndex && parent.childNodes[ nodeIndex ];while ( (node = ++nodeIndex && node && node[ dir ] ||// Fallback to seeking `elem` from the start(diff = nodeIndex = 0) || start.pop()) ) {// When found, cache indexes on `parent` and breakif ( node.nodeType === 1 && ++diff && node === elem ) {outerCache[ type ] = [ dirruns, nodeIndex, diff ];break;}}// Use previously-cached element index if available} else if ( useCache && (cache = (elem[ expando ] || (elem[ expando ] = {}))[ type ]) && cache[0] === dirruns ) {diff = cache[1];// xml :nth-child(...) or :nth-last-child(...) or :nth(-last)?-of-type(...)} else {// Use the same loop as above to seek `elem` from the startwhile ( (node = ++nodeIndex && node && node[ dir ] ||(diff = nodeIndex = 0) || start.pop()) ) {if ( ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) && ++diff ) {// Cache the index of each encountered elementif ( useCache ) {(node[ expando ] || (node[ expando ] = {}))[ type ] = [ dirruns, diff ];}if ( node === elem ) {break;}}}}// Incorporate the offset, then check against cycle sizediff -= last;return diff === first || ( diff % first === 0 && diff / first >= 0 );}};},"PSEUDO": function( pseudo, argument ) {// pseudo-class names are case-insensitive// http://www.w3.org/TR/selectors/#pseudo-classes// Prioritize by case sensitivity in case custom pseudos are added with uppercase letters// Remember that setFilters inherits from pseudosvar args,fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||Sizzle.error( "unsupported pseudo: " + pseudo );// The user may use createPseudo to indicate that// arguments are needed to create the filter function// just as Sizzle doesif ( fn[ expando ] ) {return fn( argument );}// But maintain support for old signaturesif ( fn.length > 1 ) {args = [ pseudo, pseudo, "", argument ];return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?markFunction(function( seed, matches ) {var idx,matched = fn( seed, argument ),i = matched.length;while ( i-- ) {idx = indexOf.call( seed, matched[i] );seed[ idx ] = !( matches[ idx ] = matched[i] );}}) :function( elem ) {return fn( elem, 0, args );};}return fn;}},pseudos: {// Potentially complex pseudos"not": markFunction(function( selector ) {// Trim the selector passed to compile// to avoid treating leading and trailing// spaces as combinatorsvar input = [],results = [],matcher = compile( selector.replace( rtrim, "$1" ) );return matcher[ expando ] ?markFunction(function( seed, matches, context, xml ) {var elem,unmatched = matcher( seed, null, xml, [] ),i = seed.length;// Match elements unmatched by `matcher`while ( i-- ) {if ( (elem = unmatched[i]) ) {seed[i] = !(matches[i] = elem);}}}) :function( elem, context, xml ) {input[0] = elem;matcher( input, null, xml, results );return !results.pop();};}),"has": markFunction(function( selector ) {return function( elem ) {return Sizzle( selector, elem ).length > 0;};}),"contains": markFunction(function( text ) {return function( elem ) {return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;};}),// "Whether an element is represented by a :lang() selector// is based solely on the element's language value// being equal to the identifier C,// or beginning with the identifier C immediately followed by "-".// The matching of C against the element's language value is performed case-insensitively.// The identifier C does not have to be a valid language name."// http://www.w3.org/TR/selectors/#lang-pseudo"lang": markFunction( function( lang ) {// lang value must be a valid identifierif ( !ridentifier.test(lang || "") ) {Sizzle.error( "unsupported lang: " + lang );}lang = lang.replace( runescape, funescape ).toLowerCase();return function( elem ) {var elemLang;do {if ( (elemLang = documentIsHTML ?elem.lang :elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) {elemLang = elemLang.toLowerCase();return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;}} while ( (elem = elem.parentNode) && elem.nodeType === 1 );return false;};}),// Miscellaneous"target": function( elem ) {var hash = window.location && window.location.hash;return hash && hash.slice( 1 ) === elem.id;},"root": function( elem ) {return elem === docElem;},"focus": function( elem ) {return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);},// Boolean properties"enabled": function( elem ) {return elem.disabled === false;},"disabled": function( elem ) {return elem.disabled === true;},"checked": function( elem ) {// In CSS3, :checked should return both checked and selected elements// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checkedvar nodeName = elem.nodeName.toLowerCase();return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);},"selected": function( elem ) {// Accessing this property makes selected-by-default// options in Safari work properlyif ( elem.parentNode ) {elem.parentNode.selectedIndex;}return elem.selected === true;},// Contents"empty": function( elem ) {// http://www.w3.org/TR/selectors/#empty-pseudo// :empty is only affected by element nodes and content nodes(including text(3), cdata(4)),//   not comment, processing instructions, or others// Thanks to Diego Perini for the nodeName shortcut//   Greater than "@" means alpha characters (specifically not starting with "#" or "?")for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {if ( elem.nodeName > "@" || elem.nodeType === 3 || elem.nodeType === 4 ) {return false;}}return true;},"parent": function( elem ) {return !Expr.pseudos["empty"]( elem );},// Element/input types"header": function( elem ) {return rheader.test( elem.nodeName );},"input": function( elem ) {return rinputs.test( elem.nodeName );},"button": function( elem ) {var name = elem.nodeName.toLowerCase();return name === "input" && elem.type === "button" || name === "button";},"text": function( elem ) {var attr;// IE6 and 7 will map elem.type to 'text' for new HTML5 types (search, etc)// use getAttribute instead to test this casereturn elem.nodeName.toLowerCase() === "input" &&elem.type === "text" &&( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === elem.type );},// Position-in-collection"first": createPositionalPseudo(function() {return [ 0 ];}),"last": createPositionalPseudo(function( matchIndexes, length ) {return [ length - 1 ];}),"eq": createPositionalPseudo(function( matchIndexes, length, argument ) {return [ argument < 0 ? argument + length : argument ];}),"even": createPositionalPseudo(function( matchIndexes, length ) {var i = 0;for ( ; i < length; i += 2 ) {matchIndexes.push( i );}return matchIndexes;}),"odd": createPositionalPseudo(function( matchIndexes, length ) {var i = 1;for ( ; i < length; i += 2 ) {matchIndexes.push( i );}return matchIndexes;}),"lt": createPositionalPseudo(function( matchIndexes, length, argument ) {var i = argument < 0 ? argument + length : argument;for ( ; --i >= 0; ) {matchIndexes.push( i );}return matchIndexes;}),"gt": createPositionalPseudo(function( matchIndexes, length, argument ) {var i = argument < 0 ? argument + length : argument;for ( ; ++i < length; ) {matchIndexes.push( i );}return matchIndexes;})}
};Expr.pseudos["nth"] = Expr.pseudos["eq"];// Add button/input type pseudos
for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {Expr.pseudos[ i ] = createInputPseudo( i );
}
for ( i in { submit: true, reset: true } ) {Expr.pseudos[ i ] = createButtonPseudo( i );
}// Easy API for creating new setFiltersfunction setFilters() {}
setFilters.prototype = Expr.filters = Expr.pseudos;
Expr.setFilters = new setFilters();function tokenize( selector, parseOnly ) {var matched, match, tokens, type,soFar, groups, preFilters,cached = tokenCache[ selector + " " ];if ( cached ) {return parseOnly ? 0 : cached.slice( 0 );}soFar = selector;groups = [];preFilters = Expr.preFilter;while ( soFar ) {// Comma and first runif ( !matched || (match = rcomma.exec( soFar )) ) {if ( match ) {// Don't consume trailing commas as validsoFar = soFar.slice( match[0].length ) || soFar;}groups.push( tokens = [] );}matched = false;// Combinatorsif ( (match = rcombinators.exec( soFar )) ) {matched = match.shift();tokens.push({value: matched,// Cast descendant combinators to spacetype: match[0].replace( rtrim, " " )});soFar = soFar.slice( matched.length );}// Filtersfor ( type in Expr.filter ) {if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||(match = preFilters[ type ]( match ))) ) {matched = match.shift();tokens.push({value: matched,type: type,matches: match});soFar = soFar.slice( matched.length );}}if ( !matched ) {break;}}// Return the length of the invalid excess// if we're just parsing// Otherwise, throw an error or return tokensreturn parseOnly ?soFar.length :soFar ?Sizzle.error( selector ) :// Cache the tokenstokenCache( selector, groups ).slice( 0 );
}function toSelector( tokens ) {var i = 0,len = tokens.length,selector = "";for ( ; i < len; i++ ) {selector += tokens[i].value;}return selector;
}function addCombinator( matcher, combinator, base ) {var dir = combinator.dir,checkNonElements = base && dir === "parentNode",doneName = done++;return combinator.first ?// Check against closest ancestor/preceding elementfunction( elem, context, xml ) {while ( (elem = elem[ dir ]) ) {if ( elem.nodeType === 1 || checkNonElements ) {return matcher( elem, context, xml );}}} :// Check against all ancestor/preceding elementsfunction( elem, context, xml ) {var data, cache, outerCache,dirkey = dirruns + " " + doneName;// We can't set arbitrary data on XML nodes, so they don't benefit from dir cachingif ( xml ) {while ( (elem = elem[ dir ]) ) {if ( elem.nodeType === 1 || checkNonElements ) {if ( matcher( elem, context, xml ) ) {return true;}}}} else {while ( (elem = elem[ dir ]) ) {if ( elem.nodeType === 1 || checkNonElements ) {outerCache = elem[ expando ] || (elem[ expando ] = {});if ( (cache = outerCache[ dir ]) && cache[0] === dirkey ) {if ( (data = cache[1]) === true || data === cachedruns ) {return data === true;}} else {cache = outerCache[ dir ] = [ dirkey ];cache[1] = matcher( elem, context, xml ) || cachedruns;if ( cache[1] === true ) {return true;}}}}}};
}function elementMatcher( matchers ) {return matchers.length > 1 ?function( elem, context, xml ) {var i = matchers.length;while ( i-- ) {if ( !matchers[i]( elem, context, xml ) ) {return false;}}return true;} :matchers[0];
}function condense( unmatched, map, filter, context, xml ) {var elem,newUnmatched = [],i = 0,len = unmatched.length,mapped = map != null;for ( ; i < len; i++ ) {if ( (elem = unmatched[i]) ) {if ( !filter || filter( elem, context, xml ) ) {newUnmatched.push( elem );if ( mapped ) {map.push( i );}}}}return newUnmatched;
}function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {if ( postFilter && !postFilter[ expando ] ) {postFilter = setMatcher( postFilter );}if ( postFinder && !postFinder[ expando ] ) {postFinder = setMatcher( postFinder, postSelector );}return markFunction(function( seed, results, context, xml ) {var temp, i, elem,preMap = [],postMap = [],preexisting = results.length,// Get initial elements from seed or contextelems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),// Prefilter to get matcher input, preserving a map for seed-results synchronizationmatcherIn = preFilter && ( seed || !selector ) ?condense( elems, preMap, preFilter, context, xml ) :elems,matcherOut = matcher ?// If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,postFinder || ( seed ? preFilter : preexisting || postFilter ) ?// ...intermediate processing is necessary[] :// ...otherwise use results directlyresults :matcherIn;// Find primary matchesif ( matcher ) {matcher( matcherIn, matcherOut, context, xml );}// Apply postFilterif ( postFilter ) {temp = condense( matcherOut, postMap );postFilter( temp, [], context, xml );// Un-match failing elements by moving them back to matcherIni = temp.length;while ( i-- ) {if ( (elem = temp[i]) ) {matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);}}}if ( seed ) {if ( postFinder || preFilter ) {if ( postFinder ) {// Get the final matcherOut by condensing this intermediate into postFinder contextstemp = [];i = matcherOut.length;while ( i-- ) {if ( (elem = matcherOut[i]) ) {// Restore matcherIn since elem is not yet a final matchtemp.push( (matcherIn[i] = elem) );}}postFinder( null, (matcherOut = []), temp, xml );}// Move matched elements from seed to results to keep them synchronizedi = matcherOut.length;while ( i-- ) {if ( (elem = matcherOut[i]) &&(temp = postFinder ? indexOf.call( seed, elem ) : preMap[i]) > -1 ) {seed[temp] = !(results[temp] = elem);}}}// Add elements to results, through postFinder if defined} else {matcherOut = condense(matcherOut === results ?matcherOut.splice( preexisting, matcherOut.length ) :matcherOut);if ( postFinder ) {postFinder( null, results, matcherOut, xml );} else {push.apply( results, matcherOut );}}});
}function matcherFromTokens( tokens ) {var checkContext, matcher, j,len = tokens.length,leadingRelative = Expr.relative[ tokens[0].type ],implicitRelative = leadingRelative || Expr.relative[" "],i = leadingRelative ? 1 : 0,// The foundational matcher ensures that elements are reachable from top-level context(s)matchContext = addCombinator( function( elem ) {return elem === checkContext;}, implicitRelative, true ),matchAnyContext = addCombinator( function( elem ) {return indexOf.call( checkContext, elem ) > -1;}, implicitRelative, true ),matchers = [ function( elem, context, xml ) {return ( !leadingRelative && ( xml || context !== outermostContext ) ) || ((checkContext = context).nodeType ?matchContext( elem, context, xml ) :matchAnyContext( elem, context, xml ) );} ];for ( ; i < len; i++ ) {if ( (matcher = Expr.relative[ tokens[i].type ]) ) {matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];} else {matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );// Return special upon seeing a positional matcherif ( matcher[ expando ] ) {// Find the next relative operator (if any) for proper handlingj = ++i;for ( ; j < len; j++ ) {if ( Expr.relative[ tokens[j].type ] ) {break;}}return setMatcher(i > 1 && elementMatcher( matchers ),i > 1 && toSelector(// If the preceding token was a descendant combinator, insert an implicit any-element `*`tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" })).replace( rtrim, "$1" ),matcher,i < j && matcherFromTokens( tokens.slice( i, j ) ),j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),j < len && toSelector( tokens ));}matchers.push( matcher );}}return elementMatcher( matchers );
}function matcherFromGroupMatchers( elementMatchers, setMatchers ) {// A counter to specify which element is currently being matchedvar matcherCachedRuns = 0,bySet = setMatchers.length > 0,byElement = elementMatchers.length > 0,superMatcher = function( seed, context, xml, results, expandContext ) {var elem, j, matcher,setMatched = [],matchedCount = 0,i = "0",unmatched = seed && [],outermost = expandContext != null,contextBackup = outermostContext,// We must always have either seed elements or contextelems = seed || byElement && Expr.find["TAG"]( "*", expandContext && context.parentNode || context ),// Use integer dirruns iff this is the outermost matcherdirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1);if ( outermost ) {outermostContext = context !== document && context;cachedruns = matcherCachedRuns;}// Add elements passing elementMatchers directly to results// Keep `i` a string if there are no elements so `matchedCount` will be "00" belowfor ( ; (elem = elems[i]) != null; i++ ) {if ( byElement && elem ) {j = 0;while ( (matcher = elementMatchers[j++]) ) {if ( matcher( elem, context, xml ) ) {results.push( elem );break;}}if ( outermost ) {dirruns = dirrunsUnique;cachedruns = ++matcherCachedRuns;}}// Track unmatched elements for set filtersif ( bySet ) {// They will have gone through all possible matchersif ( (elem = !matcher && elem) ) {matchedCount--;}// Lengthen the array for every element, matched or notif ( seed ) {unmatched.push( elem );}}}// Apply set filters to unmatched elementsmatchedCount += i;if ( bySet && i !== matchedCount ) {j = 0;while ( (matcher = setMatchers[j++]) ) {matcher( unmatched, setMatched, context, xml );}if ( seed ) {// Reintegrate element matches to eliminate the need for sortingif ( matchedCount > 0 ) {while ( i-- ) {if ( !(unmatched[i] || setMatched[i]) ) {setMatched[i] = pop.call( results );}}}// Discard index placeholder values to get only actual matchessetMatched = condense( setMatched );}// Add matches to resultspush.apply( results, setMatched );// Seedless set matches succeeding multiple successful matchers stipulate sortingif ( outermost && !seed && setMatched.length > 0 &&( matchedCount + setMatchers.length ) > 1 ) {Sizzle.uniqueSort( results );}}// Override manipulation of globals by nested matchersif ( outermost ) {dirruns = dirrunsUnique;outermostContext = contextBackup;}return unmatched;};return bySet ?markFunction( superMatcher ) :superMatcher;
}compile = Sizzle.compile = function( selector, group /* Internal Use Only */ ) {var i,setMatchers = [],elementMatchers = [],cached = compilerCache[ selector + " " ];if ( !cached ) {// Generate a function of recursive functions that can be used to check each elementif ( !group ) {group = tokenize( selector );}i = group.length;while ( i-- ) {cached = matcherFromTokens( group[i] );if ( cached[ expando ] ) {setMatchers.push( cached );} else {elementMatchers.push( cached );}}// Cache the compiled functioncached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );}return cached;
};function multipleContexts( selector, contexts, results ) {var i = 0,len = contexts.length;for ( ; i < len; i++ ) {Sizzle( selector, contexts[i], results );}return results;
}function select( selector, context, results, seed ) {var i, tokens, token, type, find,match = tokenize( selector );if ( !seed ) {// Try to minimize operations if there is only one groupif ( match.length === 1 ) {// Take a shortcut and set the context if the root selector is an IDtokens = match[0] = match[0].slice( 0 );if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&support.getById && context.nodeType === 9 && documentIsHTML &&Expr.relative[ tokens[1].type ] ) {context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];if ( !context ) {return results;}selector = selector.slice( tokens.shift().value.length );}// Fetch a seed set for right-to-left matchingi = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;while ( i-- ) {token = tokens[i];// Abort if we hit a combinatorif ( Expr.relative[ (type = token.type) ] ) {break;}if ( (find = Expr.find[ type ]) ) {// Search, expanding context for leading sibling combinatorsif ( (seed = find(token.matches[0].replace( runescape, funescape ),rsibling.test( tokens[0].type ) && context.parentNode || context)) ) {// If seed is empty or no tokens remain, we can return earlytokens.splice( i, 1 );selector = seed.length && toSelector( tokens );if ( !selector ) {push.apply( results, seed );return results;}break;}}}}}// Compile and execute a filtering function// Provide `match` to avoid retokenization if we modified the selector abovecompile( selector, match )(seed,context,!documentIsHTML,results,rsibling.test( selector ));return results;
}// One-time assignments// Sort stability
support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;// Support: Chrome<14
// Always assume duplicates if they aren't passed to the comparison function
support.detectDuplicates = hasDuplicate;// Initialize against the default document
setDocument();// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
// Detached nodes confoundingly follow *each other*
support.sortDetached = assert(function( div1 ) {// Should return 1, but returns 4 (following)return div1.compareDocumentPosition( document.createElement("div") ) & 1;
});// Support: IE<8
// Prevent attribute/property "interpolation"
// http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
if ( !assert(function( div ) {div.innerHTML = "<a href='#'></a>";return div.firstChild.getAttribute("href") === "#" ;
}) ) {addHandle( "type|href|height|width", function( elem, name, isXML ) {if ( !isXML ) {return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );}});
}// Support: IE<9
// Use defaultValue in place of getAttribute("value")
if ( !support.attributes || !assert(function( div ) {div.innerHTML = "<input/>";div.firstChild.setAttribute( "value", "" );return div.firstChild.getAttribute( "value" ) === "";
}) ) {addHandle( "value", function( elem, name, isXML ) {if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {return elem.defaultValue;}});
}// Support: IE<9
// Use getAttributeNode to fetch booleans when getAttribute lies
if ( !assert(function( div ) {return div.getAttribute("disabled") == null;
}) ) {addHandle( booleans, function( elem, name, isXML ) {var val;if ( !isXML ) {return (val = elem.getAttributeNode( name )) && val.specified ?val.value :elem[ name ] === true ? name.toLowerCase() : null;}});
}jQuery.find = Sizzle;
jQuery.expr = Sizzle.selectors;
jQuery.expr[":"] = jQuery.expr.pseudos;
jQuery.unique = Sizzle.uniqueSort;
jQuery.text = Sizzle.getText;
jQuery.isXMLDoc = Sizzle.isXML;
jQuery.contains = Sizzle.contains;})( window );
}
///Sizzle END
///Callbacks BEGIN
{
// optionsCache : { 'once memory' : { once : true , memory : true } }
var optionsCache = {};// once memory，options.match( core_rnotwhite )=[once, memory]，function( _, flag )={once:true,memory:true}
function createOptions( options ) {var object = optionsCache[ options ] = {};//中括号就是json的点，没有点了。jQuery.each( options.match( core_rnotwhite ) || [], function( _, flag ) {object[ flag ] = true;});return object;
}/*var cb = $.Callbacks();function aaa(){alert(1);}cb.add(aaa);(function(){function bbb(){alert(2);}cb.add(bbb);})();cb.fire();//1  2*/
jQuery.Callbacks = function( options ) {//类的静态方法//options 可选： once memory unique stopOnFalse//方法：add remove has empty disable disabled lock locked fireWith fire fired//什么都不写走jQuery.extend( {}, options )，返回空{},不这样写，如果options===undefined，后面还要做兼容。options = typeof options === "string" ?( optionsCache[ options ] || createOptions( options ) ) :jQuery.extend( {}, options );//options={once:true,memory:true}var  memory,fired,firing,firingStart,firingLength,firingIndex,// 添加的所有方法list = [],stack = !options.once && [],fire = function( data ) {memory = options.memory && data;//有memory返回truefired = true;//触发开始firingIndex = firingStart || 0;firingStart = 0;firingLength = list.length;firing = true;for ( ; list && firingIndex < firingLength; firingIndex++ ) {if ( list[ firingIndex ].apply( data[ 0 ], data[ 1 ] ) === false && options.stopOnFalse ) {// 函数返回false,有stopOnFalse属性就不向下执行memory = false; //memory也要置为falsebreak;}}firing = false;//触发结束if ( list ) {if ( stack ) {if ( stack.length ) {fire( stack.shift() );}} else if ( memory ) {list = [];} else {self.disable();}}},self = {//对外部接口add: function() {if ( list ) {//list一上来是空数组，会返回真，var start = list.length;(function add( args ) {//args是形参jQuery.each( args, function( _, arg ) {//遍历传进来的多个方法名，var type = jQuery.type( arg );if ( type === "function" ) {if ( !options.unique || !self.has( arg ) ) {//不是unioqye，或者是unipue但是没有list.push( arg );}} else if ( arg && arg.length && type !== "string" ) {//数组，嵌套add( arg );}});})( arguments );//arguments是实参，方法名aaa,if ( firing ) {firingLength = list.length;} else if ( memory ) {//第一次没有赋值是undefined，firingStart = start;fire( memory );}}return this;},remove: function() {if ( list ) {jQuery.each( arguments, function( _, arg ) {//可以删除多个var index;while( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {list.splice( index, 1 );//删除if ( firing ) {if ( index <= firingLength ) {firingLength--;}if ( index <= firingIndex ) {firingIndex--;}}}});}return this;},has: function( fn ) {return fn ? jQuery.inArray( fn, list ) > -1 : !!( list && list.length );},empty: function() {list = [];firingLength = 0;return this;},disable: function() {list = stack = memory = undefined;return this;},disabled: function() {return !list;},lock: function() {stack = undefined;if ( !memory ) {self.disable();}return this;},locked: function() {return !stack;},fireWith: function( context, args ) {if ( list && ( !fired || stack ) ) {args = args || [];args = [ context, args.slice ? args.slice() : args ];if ( firing ) {stack.push( args );} else {fire( args );}}return this;},fire: function() {self.fireWith( this, arguments );//cb.fire('hello');return this;},fired: function() {return !!fired;}};return self;
};
}
///Callbacks END
///Deferred : 延迟对象 BEGIN
{
//延迟对象
jQuery.extend({Deferred: function( func ) {var tuples = [//resolve完成、reject未完成、notify进行中类似于fire，done、fail、progress回调函数的方法类似于add，jQuery.Callbacks()创建回调对象实现回调方法。映射数组。// action, add listener, listener list, final state[ "resolve", "done", jQuery.Callbacks("once memory"), "resolved" ],[ "reject", "fail", jQuery.Callbacks("once memory"), "rejected" ],[ "notify", "progress", jQuery.Callbacks("memory") ]],state = "pending",promise = {state: function() {return state;},always: function() {deferred.done( arguments ).fail( arguments );return this;},then: function( /* fnDone, fnFail, fnProgress */ ) {var fns = arguments;return jQuery.Deferred(function( newDefer ) {jQuery.each( tuples, function( i, tuple ) {var action = tuple[ 0 ],//得到状态fn = jQuery.isFunction( fns[ i ] ) && fns[ i ];//是函数得到这个函数，不是函数返回假，// deferred[ done | fail | progress ] for forwarding actions to newDeferdeferred[ tuple[1] ](function() {var returned = fn && fn.apply( this, arguments );if ( returned && jQuery.isFunction( returned.promise ) ) {returned.promise().done( newDefer.resolve ).fail( newDefer.reject ).progress( newDefer.notify );} else {newDefer[ action + "With" ]( this === promise ? newDefer.promise() : this, fn ? [ returned ] : arguments );}});});fns = null;}).promise();},//jQuery.extend( obj, promise )这个promise是根据函数闭包，向上去找的，把promise复制给obj，promise: function( obj ) {return obj != null ? jQuery.extend( obj, promise ) : promise;}},deferred = {};// Keep pipe for back-compatpromise.pipe = promise.then;// 映射数组进行映射的函数jQuery.each( tuples, function( i, tuple ) {var list = tuple[ 2 ],//jQuery.Callbacks("once memory")stateString = tuple[ 3 ];//resolved// promise[ done | fail | progress ] = list.add=jQuery.Callbacks("once memory").add方法promise[ tuple[1] ] = list.add;// Handle stateif ( stateString ) {list.add(function() {// state = [ resolved | rejected ]state = stateString;// [ reject_list | resolve_list ].disable; progress_list.lock}, tuples[ i ^ 1 ][ 2 ].disable, tuples[ 2 ][ 2 ].lock );}// deferred[ resolve | reject | notify ]deferred[ tuple[0] ] = function() {//给deferred这个json赋值deferred[ tuple[0] + "With" ]( this === deferred ? promise : this, arguments );return this;};// deferred[ resolveWith | rejectWith | notifyWith ]=jQuery.Callbacks("once memory").fireWith方法deferred[ tuple[0] + "With" ] = list.fireWith;//继续给deferred这个json赋值});// 把promise复制给deferred，deferred比promise多了3个方法，promise.promise( deferred );// Call given func if anyif ( func ) {func.call( deferred, deferred );}// All done!return deferred;},// Deferred helperwhen: function( subordinate /* , ..., subordinateN */ ) {var i = 0,resolveValues = core_slice.call( arguments ),length = resolveValues.length,// 未完成函数的计数器，jQuery.isFunction( subordinate.promise ):subordinate的返回值是不是函数。remaining = length !== 1 || ( subordinate && jQuery.isFunction( subordinate.promise ) ) ? length : 0,// the master Deferred. If resolveValues consist of only a single Deferred, just use that.deferred = remaining === 1 ? subordinate : jQuery.Deferred(),// Update function for both resolve and progress valuesupdateFunc = function( i, contexts, values ) {return function( value ) {contexts[ i ] = this;values[ i ] = arguments.length > 1 ? core_slice.call( arguments ) : value;if( values === progressValues ) {deferred.notifyWith( contexts, values );} else if ( !( --remaining ) ) {//减到0时触发resolveWith方法，deferred.resolveWith( contexts, values );}};},progressValues, progressContexts, resolveContexts;// add listeners to Deferred subordinates; treat others as resolvedif ( length > 1 ) {progressValues = new Array( length );progressContexts = new Array( length );resolveContexts = new Array( length );for ( ; i < length; i++ ) {if ( resolveValues[ i ] && jQuery.isFunction( resolveValues[ i ].promise ) ) {resolveValues[ i ].promise()//返回值.done( updateFunc( i, resolveContexts, resolveValues ) )//触发完成函数.fail( deferred.reject )//触发失败函数.progress( updateFunc( i, progressContexts, progressValues ) );} else {--remaining;}}}//计时器为0时执行resolveWith方法，if ( !remaining ) {deferred.resolveWith( resolveContexts, resolveValues );}return deferred.promise();//执行done方法，}
});
}
///Deferred : 延迟对象 END
///support : 功能检测 BEGIN
{
//兼容性，support是做兼容性检测，检测完之后实施是通过钩子机制。
jQuery.support = (function( support ) {//右边函数会立即执行var input = document.createElement("input"),fragment = document.createDocumentFragment(),//文档碎片div = document.createElement("div"),select = document.createElement("select"),opt = select.appendChild( document.createElement("option") );// input.type默认是text,基本都有，if ( !input.type ) {return support;}//改成复选框input.type = "checkbox";//新版本value的值是'on',老版本value的值是'',所以新本版support.checkOn=true,老版本support.checkOn=false,就可以通过support.checkOn属性值进行浏览器类型判断。support.checkOn = input.value !== "";// 狐火chrome下拉子项默认是选中的，ie默认不选中。support.optSelected = opt.selected;// 定义初始值support.reliableMarginRight = true;support.boxSizingReliable = true;support.pixelPosition = false;// Make sure checked status is properly cloned// Support: IE9, IE10//先让input选中，然后克隆，再判断选中状态，火狐chromeIE10以上都是选中的，ie低版本不是选中。input.checked = true;support.noCloneChecked = input.cloneNode( true ).checked;// Make sure that the options inside disabled selects aren't marked as disabled// (WebKit marks them as disabled)//下拉菜单禁止，子项有没有禁止。select.disabled = true;support.optDisabled = !opt.disabled;// Check if an input maintains its value after becoming a radio// Support: IE9, IE10input = document.createElement("input");input.value = "t";input.type = "radio";support.radioValue = input.value === "t";// #11217 - WebKit loses check when the name is after the checked attributeinput.setAttribute( "checked", "t" );input.setAttribute( "name", "t" );fragment.appendChild( input );// Support: Safari 5.1, Android 4.x, Android 2.3// old WebKit doesn't clone checked state correctly in fragmentssupport.checkClone = fragment.cloneNode( true ).cloneNode( true ).lastChild.checked;// Support: Firefox, Chrome, Safari// Beware of CSP restrictions (https://developer.mozilla.org/en/Security/CSP)support.focusinBubbles = "onfocusin" in window;//首先定义一个div的背景剪切是内容剪切，然后复制一份设置背景剪切为空，然后看原来div的背景剪切还是不是内容剪切。div.style.backgroundClip = "content-box";div.cloneNode( true ).style.backgroundClip = "";support.clearCloneStyle = div.style.backgroundClip === "content-box";//下面的需要等dom加载完才能检测jQuery(function() {var container, marginDiv,// Support: Firefox, Android 2.3 (Prefixed box-sizing versions).//divReset = "padding:0;margin:0;border:0;display:block;-webkit-box-sizing:content-box;-moz-box-sizing:content-box;box-sizing:content-box",body = document.getElementsByTagName("body")[ 0 ];if ( !body ) {// Return for frameset docs that don't have a bodyreturn;}//创建一个container来检测container = document.createElement("div");container.style.cssText = "border:0;width:0;height:0;position:absolute;top:0;left:-9999px;margin-top:1px";// Check box-sizing and margin behavior.body.appendChild( container ).appendChild( div );div.innerHTML = "";// Support: Firefox, Android 2.3 (Prefixed box-sizing versions).div.style.cssText = "-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;padding:1px;border:1px;display:block;width:4px;margin-top:1%;position:absolute;top:1%";// Workaround failing boxSizing test due to offsetWidth returning wrong value// with some non-1 values of body zoom, ticket #13543jQuery.swap( body, body.style.zoom != null ? { zoom: 1 } : {}, function() {support.boxSizing = div.offsetWidth === 4;});// Use window.getComputedStyle because jsdom on node.js will break without it.if ( window.getComputedStyle ) {support.pixelPosition = ( window.getComputedStyle( div, null ) || {} ).top !== "1%";support.boxSizingReliable = ( window.getComputedStyle( div, null ) || { width: "4px" } ).width === "4px";// Support: Android 2.3// Check if div with explicit width and no margin-right incorrectly// gets computed margin-right based on width of container. (#3333)// WebKit Bug 13343 - getComputedStyle returns wrong value for margin-rightmarginDiv = div.appendChild( document.createElement("div") );marginDiv.style.cssText = div.style.cssText = divReset;marginDiv.style.marginRight = marginDiv.style.width = "0";div.style.width = "1px";support.reliableMarginRight =!parseFloat( ( window.getComputedStyle( marginDiv, null ) || {} ).marginRight );}body.removeChild( container );});return support;//返回json
})( {} );//实参json
}
///support : 功能检测 END///
///queue() : 队列方法 : 执行顺序的管理,data() : 数据缓存 begin//
{
/*Implementation Summary1. Enforce API surface and semantic compatibility with 1.9.x branch2. Improve the module's maintainability by reducing the storagepaths to a single mechanism.3. Use the same single mechanism to support "private" and "user" data.4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)5. Avoid exposing implementation details on user objects (eg. expando properties)6. Provide a clear path for implementation upgrade to WeakMap in 2014
*/
var data_user, data_priv,rbrace = /(?:\{[\s\S]*\}|\[[\s\S]*\])$/,rmultiDash = /([A-Z])/g;function Data() {// cache = {0：｛｝ },并且这个0属性是不能被修改的。这个0是公用的。Object.defineProperty( this.cache = {}, 0, {get: function() {return {};}});//唯一标识，idthis.expando = jQuery.expando + Math.random();
}
/*
var cache = {1 : {              //同一个元素只有一个idage : 30,job : 'it','allName' : '妙味课堂'},2 : {age : obj}
*/
Data.uid = 1;//cache中可以累加的属性1,2,3Data.accepts = function( owner ) {// 1是元素，2是document,都是可以在cache中分配id的。return owner.nodeType ?owner.nodeType === 1 || owner.nodeType === 9 : true;
};Data.prototype = {//分配映射id或者0:空jsonkey: function( owner ) {//owner是document.body或者$('#div1')对象，// 不是元素也不是document,就返回0，id就是0,在cache中返回空对象{},defineProperty中给cache定义的空对象。if ( !Data.accepts( owner ) ) {return 0;}var descriptor = {},// 获取$('#div1')的属性this.expando的值，unlock = owner[ this.expando ];if ( !unlock ) {unlock = Data.uid++;try {/*descriptor={jQuery203089541586732714850.8840931279098725:{value:1}}*/descriptor[ this.expando ] = { value: unlock };//给owner增加一个属性descriptor:json并且不能改变Object.defineProperties( owner, descriptor );// Support: Android < 4// Fallback to a less secure definition} catch ( e ) {//兼容性：通过extend给owner增加{key:value}的键值对，这个可以被修改descriptor={jQuery203089541586732714850.8840931279098725:1}descriptor[ this.expando ] = unlock;jQuery.extend( owner, descriptor );}}if ( !this.cache[ unlock ] ) {this.cache[ unlock ] = {};//cache={1:{}}}return unlock;},//设置cache的值set: function( owner, data, value ) {var prop,//找到这个元素的id和cache中的jsonunlock = this.key( owner ),cache = this.cache[ unlock ];//cache是某个id的jsonif ( typeof data === "string" ) {cache[ data ] = value;//是字符串，就把key value加进去//是json，$.data(document.body ,{ 'age' : 30 , 'job' : 'it' , 'allName' : '妙味课堂'});} else {// Fresh assignments by object are shallow copiedif ( jQuery.isEmptyObject( cache ) ) {jQuery.extend( this.cache[ unlock ], data );//继承json过去// Otherwise, copy the properties one-by-one to the cache object} else {for ( prop in data ) {cache[ prop ] = data[ prop ];}}}return cache;},//获取cache中的值get: function( owner, key ) {var cache = this.cache[ this.key( owner ) ];return key === undefined ?cache : cache[ key ];},//set,get合体//queue = data_priv.access( elem, type,jQuery.makeArray(data) );access: function( owner, key, value ) {var stored;// In cases where either:////   1. No key was specified//   2. A string key was specified, but no value provided//// Take the "read" path and allow the get method to determine// which value to return, respectively either:////   1. The entire cache object//   2. The data stored at the key//if ( key === undefined ||((key && typeof key === "string") && value === undefined) ) {//没有key就全部取出来，有key没有value只取stored = this.get( owner, key );return stored !== undefined ?stored : this.get( owner, jQuery.camelCase(key) );}//有key有value,全部覆盖或者追加// [*]When the key is not a string, or both a key and value// are specified, set or extend (existing objects) with either:////   1. An object of properties//   2. A key and value//this.set( owner, key, value );// Since the "set" path can have two possible entry points// return the expected data based on which path was taken[*]return value !== undefined ? value : key;},//移除cache//data_priv.remove( elem, [ type + "queue", type + "queueHooks"; ] );remove: function( owner, key ) {var i, name, camel,unlock = this.key( owner ),cache = this.cache[ unlock ];//cache是某一个key的cache,if ( key === undefined ) {//不指定key，这个元素所有的都清空。this.cache[ unlock ] = {};} else {// $.removeData(document.body , ['age','job','all-name']);if ( jQuery.isArray( key ) ) {//all-name找到allNamename = key.concat( key.map( jQuery.camelCase ) );} else {camel = jQuery.camelCase( key );// Try the string as a key before any manipulationif ( key in cache ) {name = [ key, camel ];} else {// 转驼峰，去空格后在不在name = camel;name = name in cache ?[ name ] : ( name.match( core_rnotwhite ) || [] );}}i = name.length;while ( i-- ) {delete cache[ name[ i ] ];}}},hasData: function( owner ) {return !jQuery.isEmptyObject(this.cache[ owner[ this.expando ] ] || {});},discard: function( owner ) {//删除1,2,这个整体if ( owner[ this.expando ] ) {delete this.cache[ owner[ this.expando ] ];}}
};// These may be used throughout the jQuery core codebase
data_user = new Data();//cache就是依附在这个对象上
data_priv = new Data();//对外提供的接口，通过$.直接调用。这个是方法的定义，准备给jQuery类调用的，里面的实现都是调用Data对象的实现。
jQuery.extend({acceptData: Data.accepts,hasData: function( elem ) {return data_user.hasData( elem ) || data_priv.hasData( elem );},data: function( elem, name, data ) {return data_user.access( elem, name, data );},removeData: function( elem, name ) {data_user.remove( elem, name );},// TODO: Now that all calls to _data and _removeData have been replaced// with direct calls to data_priv methods, these can be deprecated.//私有的，内部使用，不对外使用_data: function( elem, name, data ) {return data_priv.access( elem, name, data );},_removeData: function( elem, name ) {data_priv.remove( elem, name );}
});//对外提供的接口，通过jQuery对象调用。设置一组元素时候是设置所有元素，获取元素只是获取第一个。
jQuery.fn.extend({data: function( key, value ) {var attrs, name,elem = this[ 0 ],//如果是一组div,就只要第一个，i = 0,data = null;// Gets all valuesif ( key === undefined ) {if ( this.length ) {//$('#div1')找不到得到data = data_user.get( elem );
//alert($('#div1').get(0).dataset.miaovAll);//h5特性，data-miaov-all="妙味"
//对h5特性的处理if ( elem.nodeType === 1 && !data_priv.get( elem, "hasDataAttrs" ) ) {attrs = elem.attributes;//元素所有属性数组集合[title='123',class='box',data-miaov-all='苗圩',id='div1']for ( ; i < attrs.length; i++ ) {name = attrs[ i ].name;//属性的名字if ( name.indexOf( "data-" ) === 0 ) {//miaov-all转成miaoAll，js中不要出现横杆name = jQuery.camelCase( name.slice(5) );//存入cachedataAttr( elem, name, data[ name ] );}}data_priv.set( elem, "hasDataAttrs", true );}}return data;}// Sets multiple    values  $('#div1').data({name:'hello',age:'30'});if ( typeof key === "object" ) {return this.each(function() {data_user.set( this, key );});}return jQuery.access( this, function( value ) {var data,camelKey = jQuery.camelCase( key );// The calling jQuery object (element matches) is not empty// (and therefore has an element appears at this[ 0 ]) and the// `value` parameter was not undefined. An empty jQuery object// will result in `undefined` for elem = this[ 0 ] which will// throw an exception if an attempt to read a data cache is made.if ( elem && value === undefined ) {// Attempt to get data from the cache// with the key as-isdata = data_user.get( elem, key );if ( data !== undefined ) {return data;}// Attempt to get data from the cache// with the key camelizeddata = data_user.get( elem, camelKey );if ( data !== undefined ) {return data;}// Attempt to "discover" the data in// HTML5 custom data-* attrsdata = dataAttr( elem, camelKey, undefined );if ( data !== undefined ) {return data;}// We tried really hard, but the data doesn't exist.return;}// Set the data...this.each(function() {// First, attempt to store a copy or reference of any// data that might've been store with a camelCased key.var data = data_user.get( this, camelKey );// For HTML5 data-* attribute interop, we have to// store property names with dashes in a camelCase form.// This might not apply to all properties...*data_user.set( this, camelKey, value );// *... In the case of properties that might _actually_// have dashes, we need to also store a copy of that// unchanged property.if ( key.indexOf("-") !== -1 && data !== undefined ) {data_user.set( this, key, value );}});}, null, value, arguments.length > 1, null, true );},removeData: function( key ) {return this.each(function() {data_user.remove( this, key );});}
});function dataAttr( elem, key, data ) {var name;// If nothing was found internally, try to fetch any// data from the HTML5 data-* attributeif ( data === undefined && elem.nodeType === 1 ) {name = "data-" + key.replace( rmultiDash, "-$1" ).toLowerCase();data = elem.getAttribute( name );if ( typeof data === "string" ) {try {data = data === "true" ? true :data === "false" ? false :data === "null" ? null :// Only convert to a number if it doesn't change the string+data + "" === data ? +data :rbrace.test( data ) ? JSON.parse( data ) :data;} catch( e ) {}// Make sure we set the data so it isn't changed laterdata_user.set( elem, key, data );} else {data = undefined;}}return data;
}//对外接口
jQuery.extend({queue: function( elem, type, data ) {//入队。元素、队列名字、存进去的函数//jQuery.queue( this, type, function( next, hooks ) {})var queue;if ( elem ) {type = ( type || "fx" ) + "queue";//不写队列名字就是fx//   $.queue( document , 'q1' , aaa||[aaa,bbb] ); queue = data_priv.get( elem, type );//get方法var cache = this.cache[ this.key( elem ) ];return type === undefined ? cache : cache[ type ];key方法return unlock = elem[ this.expando ];根据元素的唯一标识expando获取在data_priv对象中缓存中的1,2,3,4这个unlock数字，根据unlock这个数字获取cache中的json,根据type获取json中的值/*data_priv = {1(document.203089541586732714850=1):{name(type):'哈哈'(queue),q1queue(type)：...(queue数组),}}*/// Speed up dequeue by getting out quickly if this is just a lookupif ( data ) {//函数名if ( !queue || jQuery.isArray( data ) ) {//queue没有（函数是不是数组）或者queue有但是函数是数组,注意是数组就会把之前的全部覆盖。/*$.queue( document , 'q1' , aaa ); $.queue( document , 'q1' , bbb );$.queue( document , 'q1' , [ccc] );*/queue = data_priv.access( elem, type, jQuery.makeArray(data) );} else {//queue有(说明q1队列之前加过)并且函数不是数组直接push，注意queue没有的时候queue始终存的是一个数组queue.push( data );}}return queue || [];}},dequeue: function( elem, type ) {type = type || "fx";
//只能写jQuery.queue()，不能写queue(),queue()是jQuery类的静态方法，只能通过静态方式调用。
/*
jQuery.extend(  {a:function(){alert(1)},b:function(){jQuery.a();}}    )
$.b();
*/var queue = jQuery.queue( elem, type ),//得到type对应的值，是一个数组，startLength = queue.length,fn = queue.shift(),//去除数组第一个hooks = jQuery._queueHooks( elem, type ),next = function() {jQuery.dequeue( elem, type );//下一个，不能直接写dequeue，这行语句还没执行完时dequeue是不存在的};// If the fx queue is dequeued, always remove the progress sentinelif ( fn === "inprogress" ) {fn = queue.shift();startLength--;}if ( fn ) {// Add a progress sentinel to prevent the fx queue from being// automatically dequeuedif ( type === "fx" ) {queue.unshift( "inprogress" );//inprogress添进去}// clear up the last queue stop functiondelete hooks.stop;fn.call( elem, next, hooks );//出队的函数执行，}if ( !startLength && hooks ) {hooks.empty.fire();}},/*data_priv = {1(elem:document.203089541586732714850=1):{name(type):'哈哈'(queue),q1queue(type)：...(queue数组),}}*/_queueHooks: function( elem, type ) {var key = type + "queueHooks";//有就获取，没有key,value都存在value是json就追加return data_priv.get( elem, key ) || data_priv.access( elem, key, {empty: jQuery.Callbacks("once memory").add(function() {data_priv.remove( elem, [ type + "queue", key ] );})});}
});jQuery.fn.extend({//this.queue( type, function( next, hooks ) {//$('#div').queue('q1',bbb);queue: function( type, data ) {var setter = 2;//$('#div').queue(bbb);if ( typeof type !== "string" ) {//只传了一个函数，没有typedata = type;type = "fx";setter--;}
///console.log( $('#div').queue('q1') );  查看if ( arguments.length < setter ) {return jQuery.queue( this[0], type );//静态方法调用}return data === undefined ?this :this.each(function() {//$('#div')是一个数组，对每一个设置var queue = jQuery.queue( this, type, data );//每一个入队// ensure a hooks for this queuejQuery._queueHooks( this, type );if ( type === "fx" && queue[0] !== "inprogress" ) {jQuery.dequeue( this, type );//第一个入队然后立即出队，调用}});},dequeue: function( type ) {return this.each(function() {jQuery.dequeue( this, type );//每一个出队});},//.delay(2000)/*jQuery.fx.speeds = {slow: 600,fast: 200,// Default speed_default: 400};*///jQuery.fx = Tween.prototype.init;delay: function( time, type ) {time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;type = type || "fx";
//queue第二个参数是匿名函数，也添加进去return this.queue( type, function( next, hooks ) {var timeout = setTimeout( next, time );hooks.stop = function() {clearTimeout( timeout );};});},clearQueue: function( type ) {return this.queue( type || "fx", [] );//空数组是真},//队列全部执行完之后，再去调用promise: function( type, obj ) {var tmp,count = 1,defer = jQuery.Deferred(),elements = this,i = this.length,resolve = function() {if ( !( --count ) ) {defer.resolveWith( elements, [ elements ] );}};if ( typeof type !== "string" ) {obj = type;type = undefined;}type = type || "fx";while( i-- ) {tmp = data_priv.get( elements[ i ], type + "queueHooks" );if ( tmp && tmp.empty ) {count++;tmp.empty.add( resolve );}}resolve();return defer.promise( obj );}
});
}
//queue() : 队列方法 : 执行顺序的管理,data() : 数据缓存 END///
attr() prop() val() addClass()等 : 对元素属性的操作BEGIN
{
var nodeHook, boolHook,rclass = /[\t\r\n\f]/g,rreturn = /\r/g,rfocusable = /^(?:input|select|textarea|button)$/i;jQuery.fn.extend({attr: function( name, value ) {
//遍历this
//arguments.length > 1,jQuery.attr(this[i],name,value),返回this
//arguments.length <= 1,jQuery.attr(this[i],name,value),返回thisreturn jQuery.access( this, jQuery.attr, name, value, arguments.length > 1 );},removeAttr: function( name ) {return this.each(function() {jQuery.removeAttr( this, name );});},prop: function( name, value ) {return jQuery.access( this, jQuery.prop, name, value, arguments.length > 1 );},removeProp: function( name ) {return this.each(function() {delete this[ jQuery.propFix[ name ] || name ];});},//$('.div1').addClass('box2 box3');addClass: function( value ) {var classes, elem, cur, clazz, j,i = 0,len = this.length,proceed = typeof value === "string" && value;//是字符串返回字符串，不是返回flase/*$('div').addClass( function(index){alert(index);return 'box'+index;});*/if ( jQuery.isFunction( value ) ) {console.log(this);//这里的this是jQuery对象，Object { 0: <div#div1.box>, 1: <div#div2.box>, 2: <div#div3.box>, length: 3},通过return ( context || rootjQuery ).find('.div1')原生方法获得，里面每一个是节点对象不是jQuery对象return this.each(function( j ) {console.log(this);//这里不是jQuery对象是dom节点对象，<div id='div1'></div>，<div id='div2'></div>，<div id='div3'></div>console.log(jQuery( this ));//jQuery( this )是jQuery对象，Object { 0: <div#div1.box>, context: <div#div1.box>, length: 1 }，Object { 0: <div#div2.box>, context: <div#div2.box>, length: 1 }，Object { 0: <div#div3.box>, context: <div#div3.box>, length: 1 }/*jQuery( this )走的是if ( selector.nodeType ) {//节点都有nodeType属性this.context = this[0] = selector;this.length = 1;return this;*/jQuery( this ).addClass( value.call( this, j, this.className ) );});}if ( proceed ) {// 把字符串正则分割成数组classes = ( value || "" ).match( core_rnotwhite ) || [];for ( ; i < len; i++ ) {elem = this[ i ];//不是元素节点返回false，elem.className元素有没有class属性，有就合并（重复不合并），cur是之前的classcur = elem.nodeType === 1 && ( elem.className ?//非空格转换成空格( " " + elem.className + " " ).replace( rclass, " " ) :" ");if ( cur ) {j = 0;while ( (clazz = classes[j++]) ) {if ( cur.indexOf( " " + clazz + " " ) < 0 ) {cur += clazz + " ";}}//前后去空格elem.className = jQuery.trim( cur );}}}return this;},removeClass: function( value ) {var classes, elem, cur, clazz, j,i = 0,len = this.length,//先执行&&再||，proceed为true参数长度是0删除所有或者参数是字符串，为false传的不是字符串proceed = arguments.length === 0 || typeof value === "string" && value;if ( jQuery.isFunction( value ) ) {return this.each(function( j ) {jQuery( this ).removeClass( value.call( this, j, this.className ) );});}if ( proceed ) {classes = ( value || "" ).match( core_rnotwhite ) || [];for ( ; i < len; i++ ) {elem = this[ i ];// This expression is here for better compressibility (see addClass)cur = elem.nodeType === 1 && ( elem.className ?( " " + elem.className + " " ).replace( rclass, " " ) :"");if ( cur ) {j = 0;while ( (clazz = classes[j++]) ) {// Remove *all* instanceswhile ( cur.indexOf( " " + clazz + " " ) >= 0 ) {cur = cur.replace( " " + clazz + " ", " " );}}elem.className = value ? jQuery.trim( cur ) : "";}}}return this;},toggleClass: function( value, stateVal ) {var type = typeof value;//$('#div1').toggleClass('box2 box3',true);//有没有都是add//$('#div1').toggleClass('box2 box3',false);//有没有都是删除if ( typeof stateVal === "boolean" && type === "string" ) {//真就添加，假就删除return stateVal ? this.addClass( value ) : this.removeClass( value );}if ( jQuery.isFunction( value ) ) {return this.each(function( i ) {jQuery( this ).toggleClass( value.call(this, i, this.className, stateVal), stateVal );});}//$('#div1').toggleClass('box2 box3')return this.each(function() {if ( type === "string" ) {// toggle individual class namesvar className,i = 0,self = jQuery( this ),//转成jQuery对象，hasClass是jQuery对象的方法。//空格分割成数组classNames = value.match( core_rnotwhite ) || [];while ( (className = classNames[ i++ ]) ) {// check each className given, space separated listif ( self.hasClass( className ) ) {self.removeClass( className );} else {self.addClass( className );}}// Toggle whole class name//$('#div1').toggleClass(false);} else if ( type === core_strundefined || type === "boolean" ) {if ( this.className ) {// store className if setdata_priv.set( this, "__className__", this.className );}// If the element has a class name or if we're passed "false",// then remove the whole classname (if there was one, the above saved it).// Otherwise bring back whatever was previously saved (if anything),// falling back to the empty string if nothing was stored.this.className = this.className || value === false ? "" : data_priv.get( this, "__className__" ) || "";}});},hasClass: function( selector ) {var className = " " + selector + " ",i = 0,l = this.length;for ( ; i < l; i++ ) {if ( this[i].nodeType === 1 && (" " + this[i].className + " ").replace(rclass, " ").indexOf( className ) >= 0 ) {return true;}}return false;},val: function( value ) {var hooks, ret, isFunction,elem = this[0];//$('#input1').val()if ( !arguments.length ) {//获取if ( elem ) {//只获取第一个元素//hooks兼容处理,jQuery.valHooks[ elem.type ]在valHooks 这个json中找不到就找jQuery.valHooks[ elem.nodeName.toLowerCase() ]hooks = jQuery.valHooks[ elem.type ] || jQuery.valHooks[ elem.nodeName.toLowerCase() ];
/*
valHooks: {
hooks = option: {   //elem.type || elem.nodeName.toLowerCase()get: function( elem ) {}},
hooks = select: {get: function( elem ) {},set: function( elem, value ) {}}下面的：
hooks = radio: { set: function( elem ) {}get: function( elem, value ) {}},
hooks = checkbox: {set: function( elem ) {},get: function( elem, value ) {}}
}
*/if ( hooks && "get" in hooks && (ret = hooks.get( elem, "value" )) !== undefined ) {return ret;}//不再hooks里面ret = elem.value;return typeof ret === "string" ?// handle most common string casesret.replace(rreturn, "") :// handle cases where value is null/undef or numberret == null ? "" : ret;}return;}//设置isFunction = jQuery.isFunction( value );return this.each(function( i ) {var val;if ( this.nodeType !== 1 ) {return;}if ( isFunction ) {val = value.call( this, i, jQuery( this ).val() );} else {val = value;}// Treat null/undefined as ""; convert numbers to stringif ( val == null ) {//$('#input1').val(null);val = "";} else if ( typeof val === "number" ) {//$('#input1').val(123123);val += "";//转成字符串} else if ( jQuery.isArray( val ) ) {//$('#input2').val(['hello']);val = jQuery.map(val, function ( value ) {return value == null ? "" : value + "";});}hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];// If set returns undefined, fall back to normal settingif ( !hooks || !("set" in hooks) || hooks.set( this, val, "value" ) === undefined ) {this.value = val;}});}
});jQuery.extend({//静态属性只能通过jQuery静态方式调valHooks: {//option-get,select-get.select-set  兼容性处理option: {get: function( elem ) {// attributes.value is undefined in Blackberry 4.7 but// uses .value. See #6932var val = elem.attributes.value;//val不存在输出elem.value，val存在specified为false走elem.textreturn !val || val.specified ? elem.value : elem.text;}},select: {//$('select').val()get: function( elem ) {var value, option,options = elem.options,//下拉选项index = elem.selectedIndex,//当前索引值//select只选了一个或者没有选，one为true,就是单选one = elem.type === "select-one" || index < 0,//one为true时单选values是空，one是false时多选values是一个数组存储所有的选择的多个values = one ? null : [],//单选时max是当前索引加1，多选时是下拉选项的长度max = one ? index + 1 : options.length,//i = index < 0 ?max /*index < 0没有选择时one=true,i=max=0*/ :one ? index/*index >= 0有选择时,select-one单选one=true,i=index,max=index+1，*/ :0   /*index >= 0有选择时,不是select-one多选one=false,i=0,max=options.length*/;// 没有选择不进入循环，不获取select的val()//有选择单选，i=index,只获取index的val()//有选择好多选，全部获取for ( ; i < max; i++ ) {option = options[ i ];//js对象// IE6-9 doesn't update selected after form reset (#2551)if ( ( option.selected || i === index ) &&// Don't return options that are disabled or in a disabled optgroup( jQuery.support.optDisabled ? !option.disabled : option.getAttribute("disabled") === null ) &&( !option.parentNode.disabled || !jQuery.nodeName( option.parentNode, "optgroup" ) ) ) {// Get the specific value for the optionvalue = jQuery( option ).val();//转成jQuery对象// We don't need an array for one selectsif ( one ) {return value;}// Multi-Selects return an arrayvalues.push( value );}}return values;},// $('#select').val(111);//111被选中了set: function( elem, value ) {var optionSet, option,options = elem.options,//所有的下拉选项，js对象values = jQuery.makeArray( value ),//转成数组i = options.length;while ( i-- ) {//遍历option = options[ i ];if ( (option.selected = jQuery.inArray( jQuery(option).val(), values ) >= 0) ) {//在数组里面就把她设为选中optionSet = true;}}// force browsers to behave consistently when non-matching value is setif ( !optionSet ) {//都没有elem.selectedIndex = -1;}return values;}}},attr: function( elem, name, value ) {var hooks, ret,nType = elem.nodeType;// 节点不存在，或者文本、属性、注释节点if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {return;}// core_strundefined = typeof undefined,if ( typeof elem.getAttribute === core_strundefined ) {//$(document).attr('title','hello'); 走这里通过.设置return jQuery.prop( elem, name, value );}// 1是元素节点，if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {name = name.toLowerCase();//只有type才做兼容性处理hooks = jQuery.attrHooks[ name ] ||//$('input').attr('checked',true);//没问题，做兼容了( jQuery.expr.match.bool.test( name ) ? boolHook : nodeHook );}if ( value !== undefined ) {//设置
//$('#div1').attr('miaov'，null); 调用removeif ( value === null ) {jQuery.removeAttr( elem, name );
//hooks中，set方法存在，就调用set方法并且返回值存在，就返回返回值} else if ( hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ) {return ret;//有兼容性执行兼容操作，返回值} else {//没有兼容性操作设置值elem.setAttribute( name, value + "" );return value;}
//hooks中，get方法存在，就调用get方法并且返回值存在，就返回返回值} else if ( hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ) {//获取，有兼容性返回值return ret;} else {//获取没有兼容性时ret = jQuery.find.attr( elem, name );// Non-existent attributes return null, we normalize to undefinedreturn ret == null ?undefined :ret;}},removeAttr: function( elem, value ) {var name, propName,i = 0,//$('#div1').removeAttr('maio href id');attrNames = value && value.match( core_rnotwhite );//core_rnotwhite = /\S+/g, 非空格，返回数组if ( attrNames && elem.nodeType === 1 ) {while ( (name = attrNames[i++]) ) {/*propFix: {"for": "htmlFor","class": "className"},*///  $('#div1').removeAttr('class');propName = jQuery.propFix[ name ] || name;// Boolean attributes get special treatment (#10870)if ( jQuery.expr.match.bool.test( name ) ) {// $('#div1').removeAttr('checked');elem[ propName ] = false;}elem.removeAttribute( name );//调用原生}}},
//hooks = jQuery.attrHooks[ name ]attrHooks: {type: {//只有name = 'type',才会有有兼容性判断。set: function( elem, value ) {//只有set说明兼容只是针对设置没有获取if ( !jQuery.support.radioValue && value === "radio" && jQuery.nodeName(elem, "input") ) {//单选值的兼容// Setting the type on a radio button after the value resets the value in IE6-9// Reset value to default in case type is set after value during creation//当设置type = 'radio'时IE会有兼容性问题，所以要先设置类型才设置值var val = elem.value;elem.setAttribute( "type", value );if ( val ) {elem.value = val;}return value;}}}},propFix: {"for": "htmlFor","class": "className"},prop: function( elem, name, value ) {var ret, hooks, notxml,nType = elem.nodeType;// don't get/set properties on text, comment and attribute nodesif ( !elem || nType === 3 || nType === 8 || nType === 2 ) {return;}notxml = nType !== 1 || !jQuery.isXMLDoc( elem );if ( notxml ) {// Fix name and attach hooksname = jQuery.propFix[ name ] || name;hooks = jQuery.propHooks[ name ];//兼容性处理}if ( value !== undefined ) {//设置值return hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ?ret :( elem[ name ] = value );//prop使用的是.操作} else {//获取值return hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ?ret :elem[ name ];}},propHooks: {tabIndex: {//光标切换顺序，只对tabIndex属性做兼容get: function( elem ) {//只对get方法做兼容return elem.hasAttribute( "tabindex" ) || rfocusable.test( elem.nodeName ) || elem.href ?elem.tabIndex :-1;}}}
});// Hooks for boolean attributes
boolHook = {set: function( elem, value, name ) {if ( value === false ) {// Remove boolean attributes when set to falsejQuery.removeAttr( elem, name );} else {elem.setAttribute( name, name );}return name;}
};
jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) {var getter = jQuery.expr.attrHandle[ name ] || jQuery.find.attr;jQuery.expr.attrHandle[ name ] = function( elem, name, isXML ) {var fn = jQuery.expr.attrHandle[ name ],ret = isXML ?undefined :/* jshint eqeqeq: false */// Temporarily disable this handler to check existence(jQuery.expr.attrHandle[ name ] = undefined) !=getter( elem, name, isXML ) ?name.toLowerCase() :null;// Restore handlerjQuery.expr.attrHandle[ name ] = fn;return ret;};
});// Support: IE9+
// Selectedness for an option in an optgroup can be inaccurate
if ( !jQuery.support.optSelected ) {jQuery.propHooks.selected = {get: function( elem ) {var parent = elem.parentNode;if ( parent && parent.parentNode ) {parent.parentNode.selectedIndex;}return null;}};
}jQuery.each(["tabIndex","readOnly","maxLength","cellSpacing","cellPadding","rowSpan","colSpan","useMap","frameBorder","contentEditable"
], function() {//value = callback.call( obj[ i ], i, obj[ i ] );jQuery.propFix[ this.toLowerCase() ] = this;
});/*
valHooks: {
hooks = radio: { set: function( elem ) {}get: function( elem, value ) {}},
hooks = checkbox: {set: function( elem ) {},get: function( elem, value ) {}}
}
*/
jQuery.each([ "radio", "checkbox" ], function() {jQuery.valHooks[ this ] = {//$('#radio').val(['hello']);set: function( elem, value ) {if ( jQuery.isArray( value ) ) {return ( elem.checked = jQuery.inArray( jQuery(elem).val(), value ) >= 0 );//设置选中状态}}};if ( !jQuery.support.checkOn ) {//有的话做处理，没有不做处理 //获取单选框和复选框的value值时绝大多数浏览器返回的都是on，有些是空的，jQuery.valHooks[ this ].get = function( elem ) {// Support: Webkit// "" is returned instead of "on" if a value isn't specifiedreturn elem.getAttribute("value") === null ? "on" : elem.value;};}
});}
//attr() prop() val() addClass()等 : 对元素属性的操作END
//事件操作begin
{
var rkeyEvent = /^key/,rmouseEvent = /^(?:mouse|contextmenu)|click/,rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,rtypenamespace = /^([^.]*)(?:\.(.+)|)$/;function returnTrue() {return true;
}function returnFalse() {return false;
}function safeActiveElement() {try {return document.activeElement;} catch ( err ) { }
}/** Helper functions for managing events -- not part of the public interface.* Props to Dean Edwards' addEvent library for many of the ideas.*/
jQuery.event = {global: {},
//add( $('#div1'), 'click.bbb.aaa', fn, {name:'hello'}, 'li' )add: function( elem, types, handler, data, selector ) {var handleObjIn, eventHandle, tmp,events, t, handleObj,special, handlers, type, namespaces, origType,elemData = data_priv.get( elem );if ( !elemData ) {return;}// Caller can pass in an object of custom data in lieu of the handlerif ( handler.handler ) {handleObjIn = handler;handler = handleObjIn.handler;selector = handleObjIn.selector;}// Make sure that the handler has a unique ID, used to find/remove it laterif ( !handler.guid ) {handler.guid = jQuery.guid++;//函数有一个guid}// Init the element's event structure and main handler, if this is the first
//span.listeners = span.listeners || {};if ( !(events = elemData.events) ) {events = elemData.events = {}; //不存在就创建}if ( !(eventHandle = elemData.handle) ) {eventHandle = elemData.handle = function( e ) {// Discard the second event of a jQuery.event.trigger() and// when an event is called after a page has unloadedreturn typeof jQuery !== core_strundefined && (!e || jQuery.event.triggered !== e.type) ?//发送事件jQuery.event.dispatch.apply( eventHandle.elem, arguments ) :undefined;};// Add elem as a property of the handle fn to prevent a memory leak with IE non-native eventseventHandle.elem = elem;}// $('#div1').on('click mouseover mousedown',function(a){})types = ( types || "" ).match( core_rnotwhite ) || [""];t = types.length;while ( t-- ) {// $('#div1').on('click.bbb.aaa',function(a){})tmp = rtypenamespace.exec( types[t] ) || [];type = origType = tmp[1];//命名空间排序namespaces = ( tmp[2] || "" ).split( "." ).sort();// There *must* be a type, no attaching namespace-only handlersif ( !type ) {continue;}//处理特殊事件special = jQuery.event.special[ type ] || {};// If selector defined, determine special event api type, otherwise given typetype = ( selector ? special.delegateType : special.bindType ) || type;// Update special based on newly reset typespecial = jQuery.event.special[ type ] || {};// handleObj is passed to all event handlershandleObj = jQuery.extend({type: type,origType: origType,data: data,handler: handler,guid: handler.guid,//guid是函数的guidselector: selector,needsContext: selector && jQuery.expr.match.needsContext.test( selector ),namespace: namespaces.join(".")}, handleObjIn );// Init the event handler queue if we're the first
//span.listeners[eventName] = span.listeners[eventName] || [];if ( !(handlers = events[ type ]) ) {handlers = events[ type ] = [];handlers.delegateCount = 0;//委托计数// Only use addEventListener if the special events handler returns false
//obj.addEventListener(eventName,fn,false);if ( !special.setup || special.setup.call( elem, data, namespaces, eventHandle ) === false ) {if ( elem.addEventListener ) {
//自带事件绑定，自定义事件走这里但是没有任何效果，elem.addEventListener( type, eventHandle, false );}}}if ( special.add ) {special.add.call( elem, handleObj );if ( !handleObj.handler.guid ) {handleObj.handler.guid = handler.guid;}}// Add to the element's handler list, delegates in front
//obj.listeners[eventName].push(fn);if ( selector ) {handlers.splice( handlers.delegateCount++, 0, handleObj );} else {handlers.push( handleObj );}// Keep track of which events have ever been used, for event optimizationjQuery.event.global[ type ] = true;}// Nullify elem to prevent memory leaks in IEelem = null;//防止内存泄漏，},// Detach an event or set of events from an elementremove: function( elem, types, handler, selector, mappedTypes ) {var j, origCount, tmp,events, t, handleObj,special, handlers, type, namespaces, origType,elemData = data_priv.hasData( elem ) && data_priv.get( elem );if ( !elemData || !(events = elemData.events) ) {return;}// Once for each type.namespace in types; type may be omittedtypes = ( types || "" ).match( core_rnotwhite ) || [""];t = types.length;while ( t-- ) {tmp = rtypenamespace.exec( types[t] ) || [];type = origType = tmp[1];namespaces = ( tmp[2] || "" ).split( "." ).sort();// Unbind all events (on this namespace, if provided) for the elementif ( !type ) {for ( type in events ) {jQuery.event.remove( elem, type + types[ t ], handler, selector, true );}continue;}special = jQuery.event.special[ type ] || {};type = ( selector ? special.delegateType : special.bindType ) || type;handlers = events[ type ] || [];tmp = tmp[2] && new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" );// Remove matching eventsorigCount = j = handlers.length;while ( j-- ) {handleObj = handlers[ j ];if ( ( mappedTypes || origType === handleObj.origType ) &&( !handler || handler.guid === handleObj.guid ) &&( !tmp || tmp.test( handleObj.namespace ) ) &&( !selector || selector === handleObj.selector || selector === "**" && handleObj.selector ) ) {handlers.splice( j, 1 );if ( handleObj.selector ) {handlers.delegateCount--;}if ( special.remove ) {special.remove.call( elem, handleObj );}}}// Remove generic event handler if we removed something and no more handlers exist// (avoids potential for endless recursion during removal of special event handlers)
//obj.removeEventListener(eventName,fn,false);if ( origCount && !handlers.length ) {if ( !special.teardown || special.teardown.call( elem, namespaces, elemData.handle ) === false ) {jQuery.removeEvent( elem, type, elemData.handle );}
//delete obj.listeners[eventName];  针对自定义事件操作delete events[ type ];}}// Remove the expando if it's no longer usedif ( jQuery.isEmptyObject( events ) ) {delete elemData.handle;data_priv.remove( elem, "events" );}},trigger: function( event, data, elem, onlyHandlers ) {var i, cur, tmp, bubbleType, ontype, handle, special,eventPath = [ elem || document ],type = core_hasOwn.call( event, "type" ) ? event.type : event,namespaces = core_hasOwn.call( event, "namespace" ) ? event.namespace.split(".") : [];cur = tmp = elem = elem || document;// Don't do events on text and comment nodesif ( elem.nodeType === 3 || elem.nodeType === 8 ) {return;}// focus/blur morphs to focusin/out; ensure we're not firing them right nowif ( rfocusMorph.test( type + jQuery.event.triggered ) ) {return;}if ( type.indexOf(".") >= 0 ) {// Namespaced trigger; create a regexp to match event type in handle()namespaces = type.split(".");type = namespaces.shift();namespaces.sort();}ontype = type.indexOf(":") < 0 && "on" + type;// Caller can pass in a jQuery.Event object, Object, or just an event type stringevent = event[ jQuery.expando ] ?event :new jQuery.Event( type, typeof event === "object" && event );// Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)event.isTrigger = onlyHandlers ? 2 : 3;event.namespace = namespaces.join(".");event.namespace_re = event.namespace ?new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" ) :null;// Clean up the event in case it is being reusedevent.result = undefined;if ( !event.target ) {event.target = elem;}// Clone any incoming data and prepend the event, creating the handler arg listdata = data == null ?[ event ] :jQuery.makeArray( data, [ event ] );// Allow special events to draw outside the linesspecial = jQuery.event.special[ type ] || {};if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {return;}// Determine event propagation path in advance, per W3C events spec (#9951)// Bubble up to document, then to window; watch for a global ownerDocument var (#9724)if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) {bubbleType = special.delegateType || type;if ( !rfocusMorph.test( bubbleType + type ) ) {cur = cur.parentNode;}for ( ; cur; cur = cur.parentNode ) {eventPath.push( cur );tmp = cur;}// Only add window if we got to document (e.g., not plain obj or detached DOM)if ( tmp === (elem.ownerDocument || document) ) {eventPath.push( tmp.defaultView || tmp.parentWindow || window );}}// Fire handlers on the event path
//for(var i=0;i<arr.length;i++){ arr[i]();//函数执行 }i = 0;while ( (cur = eventPath[i++]) && !event.isPropagationStopped() ) {event.type = i > 1 ?bubbleType :special.bindType || type;// jQuery handlerhandle = ( data_priv.get( cur, "events" ) || {} )[ event.type ] && data_priv.get( cur, "handle" );if ( handle ) {handle.apply( cur, data );}// Native handlerhandle = ontype && cur[ ontype ];if ( handle && jQuery.acceptData( cur ) && handle.apply && handle.apply( cur, data ) === false ) {event.preventDefault();}}event.type = type;// If nobody prevented the default action, do it nowif ( !onlyHandlers && !event.isDefaultPrevented() ) {if ( (!special._default || special._default.apply( eventPath.pop(), data ) === false) &&jQuery.acceptData( elem ) ) {// Call a native DOM method on the target with the same name name as the event.// Don't do default actions on window, that's where global variables be (#6170)if ( ontype && jQuery.isFunction( elem[ type ] ) && !jQuery.isWindow( elem ) ) {// Don't re-trigger an onFOO event when we call its FOO() methodtmp = elem[ ontype ];if ( tmp ) {elem[ ontype ] = null;}// Prevent re-triggering of the same event, since we already bubbled it abovejQuery.event.triggered = type;elem[ type ]();jQuery.event.triggered = undefined;if ( tmp ) {elem[ ontype ] = tmp;}}}}return event.result;},/*eventHandle = elemData.handle = function( e ) {jQuery.event.dispatch.apply( eventHandle.elem, arguments )}*/
//配发事件的具体操作dispatch: function( event ) {//event是原生的event//event兼容性处理event = jQuery.event.fix( event );var i, j, ret, matched, handleObj,handlerQueue = [],args = core_slice.call( arguments ),handlers = ( data_priv.get( this, "events" ) || {} )[ event.type ] || [],special = jQuery.event.special[ event.type ] || {};// Use the fix-ed jQuery.Event rather than the (read-only) native eventargs[0] = event;event.delegateTarget = this;// Call the preDispatch hook for the mapped type, and let it bail if desiredif ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {return;}// 执行顺序的队列，handlerQueue = jQuery.event.handlers.call( this, event, handlers );// Run delegates first; they may want to stop propagation beneath usi = 0;while ( (matched = handlerQueue[ i++ ]) && !event.isPropagationStopped() ) {event.currentTarget = matched.elem;j = 0;while ( (handleObj = matched.handlers[ j++ ]) && !event.isImmediatePropagationStopped() ) {// Triggered event must either 1) have no namespace, or// 2) have namespace(s) a subset or equal to those in the bound event (both can have no namespace).if ( !event.namespace_re || event.namespace_re.test( handleObj.namespace ) ) {event.handleObj = handleObj;event.data = handleObj.data;ret = ( (jQuery.event.special[ handleObj.origType ] || {}).handle || handleObj.handler ).apply( matched.elem, args );if ( ret !== undefined ) {if ( (event.result = ret) === false ) {//return false就是阻止冒泡和阻止默认事件event.preventDefault();event.stopPropagation();}}}}}// Call the postDispatch hook for the mapped typeif ( special.postDispatch ) {special.postDispatch.call( this, event );}return event.result;},handlers: function( event, handlers ) {var i, matches, sel, handleObj,handlerQueue = [],delegateCount = handlers.delegateCount,cur = event.target;// Find delegate handlers// Black-hole SVG <use> instance trees (#13180)// Avoid non-left-click bubbling in Firefox (#3861)if ( delegateCount && cur.nodeType && (!event.button || event.type !== "click") ) {for ( ; cur !== this; cur = cur.parentNode || this ) {// Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)if ( cur.disabled !== true || event.type !== "click" ) {matches = [];for ( i = 0; i < delegateCount; i++ ) {handleObj = handlers[ i ];// Don't conflict with Object.prototype properties (#13203)sel = handleObj.selector + " ";if ( matches[ sel ] === undefined ) {matches[ sel ] = handleObj.needsContext ?jQuery( sel, this ).index( cur ) >= 0 :jQuery.find( sel, this, null, [ cur ] ).length;}if ( matches[ sel ] ) {matches.push( handleObj );}}if ( matches.length ) {handlerQueue.push({ elem: cur, handlers: matches });}}}}// Add the remaining (directly-bound) handlersif ( delegateCount < handlers.length ) {handlerQueue.push({ elem: this, handlers: handlers.slice( delegateCount ) });}return handlerQueue;},//JQ中共享原生JS的event属性props: "altKey bubbles cancelable ctrlKey currentTarget eventPhase metaKey relatedTarget shiftKey target timeStamp view which".split(" "),fixHooks: {},
//键盘的event兼容keyHooks: {props: "char charCode key keyCode".split(" "),//公有的属性filter: function( event, original ) {//兼容性处理// 对which做的兼容性处理if ( event.which == null ) {//which有没有//看charCode有没有，再看keyCode有没有event.which = original.charCode != null ? original.charCode : original.keyCode;}return event;}},
//鼠标的event兼容mouseHooks: {props: "button buttons clientX clientY offsetX offsetY pageX pageY screenX screenY toElement".split(" "),filter: function( event, original ) {var eventDoc, doc, body,button = original.button;// Calculate pageX/Y if missing and clientX/Y availableif ( event.pageX == null && original.clientX != null ) {eventDoc = event.target.ownerDocument || document;doc = eventDoc.documentElement;body = eventDoc.body;event.pageX = original.clientX + ( doc && doc.scrollLeft || body && body.scrollLeft || 0 ) - ( doc && doc.clientLeft || body && body.clientLeft || 0 );event.pageY = original.clientY + ( doc && doc.scrollTop  || body && body.scrollTop  || 0 ) - ( doc && doc.clientTop  || body && body.clientTop  || 0 );}// Add which for click: 1 === left; 2 === middle; 3 === right// Note: button is not normalized, so don't use itif ( !event.which && button !== undefined ) {event.which = ( button & 1 ? 1 : ( button & 2 ? 3 : ( button & 4 ? 2 : 0 ) ) );}return event;}},
//event对象的兼容处理fix: function( event ) {if ( event[ jQuery.expando ] ) {//缓存return event;}// Create a writable copy of the event object and normalize some propertiesvar i, prop, copy,type = event.type,originalEvent = event,fixHook = this.fixHooks[ type ];//type=clickif ( !fixHook ) {//兼容事件处理this.fixHooks[ type ] = fixHook =rmouseEvent.test( type ) ? this.mouseHooks :rkeyEvent.test( type ) ? this.keyHooks :{};}copy = fixHook.props ? this.props.concat( fixHook.props ) : this.props;
//创建一个增强版的event,原生没有的eventevent = new jQuery.Event( originalEvent );i = copy.length;while ( i-- ) {prop = copy[ i ];
//原生的button buttons clientX clientY offsetX offsetY pageX 等 赋值给jQuery的event,event[ prop ] = originalEvent[ prop ];}// Support: Cordova 2.5 (WebKit) (#13255)// All events should have a target; Cordova deviceready doesn'tif ( !event.target ) {event.target = document;}// Support: Safari 6.0+, Chrome < 28// Target should not be a text node (#504, #13143)if ( event.target.nodeType === 3 ) {event.target = event.target.parentNode;}
//得到兼容之后的event对象return fixHook.filter? fixHook.filter( event, originalEvent ) : event;},special: {load: {noBubble: true //load事件不冒泡},focus: {// Fire native event if possible so blur/focus sequence is correcttrigger: function() {//if ( this !== safeActiveElement() && this.focus ) {this.focus();return false;}},//委托给focusin事件delegateType: "focusin"},blur: {trigger: function() {if ( this === safeActiveElement() && this.blur ) {this.blur();return false;}},delegateType: "focusout"},click: {// For checkbox, fire native event so checked state will be righttrigger: function() {if ( this.type === "checkbox" && this.click && jQuery.nodeName( this, "input" ) ) {this.click();return false;}},// For cross-browser consistency, don't fire native .click() on links_default: function( event ) {return jQuery.nodeName( event.target, "a" );}},beforeunload: {postDispatch: function( event ) {// Support: Firefox 20+// Firefox doesn't alert if the returnValue field is not set.if ( event.result !== undefined ) {event.originalEvent.returnValue = event.result;}}}},simulate: function( type, elem, event, bubble ) {// Piggyback on a donor event to simulate a different one.// Fake originalEvent to avoid donor's stopPropagation, but if the// simulated event prevents default then we do the same on the donor.var e = jQuery.extend(new jQuery.Event(),event,{type: type,isSimulated: true,originalEvent: {}});if ( bubble ) {jQuery.event.trigger( e, null, elem );} else {jQuery.event.dispatch.call( elem, e );}if ( e.isDefaultPrevented() ) {event.preventDefault();}}
};jQuery.removeEvent = function( elem, type, handle ) {if ( elem.removeEventListener ) {elem.removeEventListener( type, handle, false );}
};
//给Jquery类增加一个静态函数，当成类看时前面是命名空间，
jQuery.Event = function( src, props ) {// 不是通过new调用，就new一个，if ( !(this instanceof jQuery.Event) ) {return new jQuery.Event( src, props );}// Event objectif ( src && src.type ) {this.originalEvent = src;this.type = src.type;// Events bubbling up the document may have been marked as prevented// by a handler lower down the tree; reflect the correct value.this.isDefaultPrevented = ( src.defaultPrevented ||src.getPreventDefault && src.getPreventDefault() ) ? returnTrue : returnFalse;// Event type} else {this.type = src;}// 属性继承if ( props ) {jQuery.extend( this, props );}// Create a timestamp if incoming event doesn't have onethis.timeStamp = src && src.timeStamp || jQuery.now();// Mark it as fixedthis[ jQuery.expando ] = true;
};// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
// http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
jQuery.Event.prototype = {isDefaultPrevented: returnFalse,isPropagationStopped: returnFalse,isImmediatePropagationStopped: returnFalse,preventDefault: function() {var e = this.originalEvent;this.isDefaultPrevented = returnTrue;if ( e && e.preventDefault ) {e.preventDefault();}},stopPropagation: function() {//阻止冒泡 var e = this.originalEvent;this.isPropagationStopped = returnTrue;if ( e && e.stopPropagation ) {e.stopPropagation();//原生的阻止冒泡方法}},stopImmediatePropagation: function() {//阻止冒泡 this.isImmediatePropagationStopped = returnTrue;this.stopPropagation();}
};// Create mouseenter/leave events using mouseover/out and event-time checks
// Support: Chrome 15+
jQuery.each({mouseenter: "mouseover",mouseleave: "mouseout"
}, function( orig, fix ) {//挂载到special上jQuery.event.special[ orig ] = {delegateType: fix,bindType: fix,handle: function( event ) {var ret,target = this,related = event.relatedTarget,handleObj = event.handleObj;// For mousenter/leave call the handler if related is outside the target.// NB: No relatedTarget if the mouse left/entered the browser windowif ( !related || (related !== target && !jQuery.contains( target, related )) ) {event.type = handleObj.origType;ret = handleObj.handler.apply( this, arguments );event.type = fix;}return ret;}};
});// Create "bubbling" focus and blur events
// Support: Firefox, Chrome, Safari
if ( !jQuery.support.focusinBubbles ) {jQuery.each({ focus: "focusin", blur: "focusout" }, function( orig, fix ) {// Attach a single capturing handler while someone wants focusin/focusoutvar attaches = 0,handler = function( event ) {jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ), true );};//挂载到special上jQuery.event.special[ fix ] = {setup: function() {if ( attaches++ === 0 ) {document.addEventListener( orig, handler, true );}},teardown: function() {if ( --attaches === 0 ) {document.removeEventListener( orig, handler, true );}}};});
}jQuery.fn.extend({//$('ul').on('click','li',{name:'hello'},function(){});  4个参数
//$('#div1').on('click',{name:'hello'},function(ev){});  3个参数
//$('#div1').on('click','li',function(ev){});  3个参数
//$('#div1').on('click',function(){});  2个参数on: function( types, selector, data, fn, one/*INTERNAL内部使用*/ ) {var origFn, type;/*$('#div1').on({'click' : function(){alert(123);},'mouseover' : function(){alert(456);}});*/if ( typeof types === "object" ) {//json// ( types-Object, selector, data )if ( typeof selector !== "string" ) {// ( types-Object, data )data = data || selector;selector = undefined;}for ( type in types ) {//分开调用this.on( type, selector, data, types[ type ], one );}return this;}//行参修正if ( data == null && fn == null ) {// 2个参数，types=click,selector=function,data=fn=nullfn = selector;data = selector = undefined;} else if ( fn == null ) {//3个参数if ( typeof selector === "string" ) {//types=click,selector='li',data=function,fn=nullfn = data;data = undefined;} else {//types=click,selector={}, data=function, fn=nullfn = data;data = selector;selector = undefined;}}if ( fn === false ) {fn = returnFalse;} else if ( !fn ) {return this;}//$('#div1').one('click',function(){})   只执行一次if ( one === 1 ) {//one方法调进来的origFn = fn;//村一次函数fn = function( event ) {jQuery().off( event );//取消事件return origFn.apply( this, arguments );//函数执行一次};// 给函数加唯一标识//a = 0; alert(a || (a=5)); 弹出5，a!=0时弹出a的值fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );}return this.each( function() {//add( this, click, fn, {name:'hello'}, 'li' )jQuery.event.add( this, types, fn, data, selector );});},one: function( types, selector, data, fn ) {return this.on( types, selector, data, fn, 1 );//第五个参数是1},off: function( types, selector, fn ) {//seletor是委托var handleObj, type;if ( types && types.preventDefault && types.handleObj ) {// ( event )  dispatched jQuery.EventhandleObj = types.handleObj;jQuery( types.delegateTarget ).off(handleObj.namespace ? handleObj.origType + "." + handleObj.namespace : handleObj.origType,handleObj.selector,handleObj.handler);return this;}if ( typeof types === "object" ) {//json做遍历// ( types-object [, selector] )for ( type in types ) {this.off( type, selector, types[ type ] );}return this;}//参数修正if ( selector === false || typeof selector === "function" ) {// ( types [, fn] )fn = selector;selector = undefined;}if ( fn === false ) {fn = returnFalse;}//调用removereturn this.each(function() {jQuery.event.remove( this, types, fn, selector );});},trigger: function( type, data ) {return this.each(function() {jQuery.event.trigger( type, data, this );});},triggerHandler: function( type, data ) {var elem = this[0];if ( elem ) {return jQuery.event.trigger( type, data, elem, true );}}
});
var isSimple = /^.[^:#\[\.,]*$/,rparentsprev = /^(?:parents|prev(?:Until|All))/,rneedsContext = jQuery.expr.match.needsContext,// methods guaranteed to produce a unique set when starting from a unique setguaranteedUnique = {children: true,contents: true,next: true,prev: true};jQuery.each( ("blur focus focusin focusout load resize scroll unload click dblclick " +"mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +"change select submit keydown keypress keyup error contextmenu").split(" "), function( i, name ) {// Handle event bindingjQuery.fn[ name ] = function( data, fn ) {return arguments.length > 0 ?this.on( name, null, data, fn ) : //on没有selector就没有委托this.trigger( name );};
});jQuery.fn.extend({hover: function( fnOver, fnOut ) {return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );},bind: function( types, data, fn ) {//on没有委托return this.on( types, null, data, fn );},unbind: function( types, fn ) {//on没有委托return this.off( types, null, fn );},
/*
$('ul').delegate('li','click',{name:'hello'},function(){$(this).css('background','red');
});
*/delegate: function( selector, types, data, fn ) {return this.on( types, selector, data, fn );//this=$('ul')，on有selector就是委托},undelegate: function( selector, types, fn ) {// ( namespace ) or ( selector, types [, fn] )return arguments.length === 1 ? this.off( selector, "**" ) : this.off( types, selector || "**", fn );}
});}
///事件操作end//
///DOM操作begin//
{
jQuery.fn.extend({
//$('ul').find('li').css('background','red');
//$('ul').find( $('li') ).css('background','red');find: function( selector ) {var i,ret = [],self = this,len = self.length;if ( typeof selector !== "string" ) {//$('li')//jQuery( selector )是li集合，filter调用者是li，filter返回的是满足function条件的li，li.prevObject=所有li，//外层 this.pushStack返回满足条件的li,li.prevObject=所有ul，return this.pushStack( jQuery( selector ).filter(function() {for ( i = 0; i < len; i++ ) {if ( jQuery.contains( self[ i ], this ) ) {//this是每一个li，是包含关系返回truereturn true;}}}) );}//$('ul').find('li').css('background','red');//'li'for ( i = 0; i < len; i++ ) {jQuery.find( selector, self[ i ], ret );//Sizzle}// Needed because $( selector, context ) becomes $( context ).find( selector ) , unique去重ret = this.pushStack( len > 1 ? jQuery.unique( ret ) : ret );ret.selector = this.selector ? this.selector + " " + selector : selector;return ret;},/*<div class="box">div1<span class="box">span</span></div><div>div2</div><span class="box1">span1</span><span class="box2">span2</span><span class="box3">span3</span>$('div').has('span').css('border','1px red solid');*/has: function( target ) {//target = "span"/*jQuery( target, this ):return ( context ：div集合对象 || rootjQuery ).find( selector："span" );Sizzle的find方法*/var targets = jQuery( target, this ),//this是div集合，返回从div集合对象中找到的span对象<span class="box">span</span>l = targets.length;//1return this.filter(  function() {//this是div集合var i = 0;for ( ; i < l; i++ ) {if ( jQuery.contains( this, targets[i] ) ) {//this是每一个divreturn true;}}}
/*
filter: function( f ) {  //这里没有函数体return this.pushStack( winnow(this, f || [], false) );//返回的是winnow(this, f || [], true)返回的结果并且结果.prevObject = 调用者。this是div集合
},
function winnow( elements, f, not ) {//把grep当成主体函数来看return jQuery.grep( elements, function( elem, i ) { //elements是div集合return !!f.call( elem, i, elem ) !== not;//elem是每一个div});//返回的是满足函数条件function也就是f的div集合
}
*/);},not: function( selector ) {//$('div').not('.box').css('border','1px red solid');/*pushStack: function( elems ) {var ret = jQuery.merge( this.constructor(), elems );ret.prevObject = this;return ret;  //返回的是满足条件的'.div',这个'.div'的prevObject=$('div'),用于回退}*///返回的是winnow(this, selector || [], true)返回的结果并且结果.prevObject = 调用者。return this.pushStack( winnow(this, selector || [], true) );},filter: function( selector ) {return this.pushStack( winnow(this, selector || [], false) );},is: function( selector ) {return !!winnow(this,// If this is a positional/relative selector, check membership in the returned set// so $("p:first").is("p:last") won't return true for a doc with two "p".typeof selector === "string" && rneedsContext.test( selector ) ?jQuery( selector ) :selector || [],false).length;},//$('#div2').closest('.box')//$('#div2').closest('.box', $('body').get(0) )closest: function( selectors, context ) {var cur,i = 0,l = this.length,matched = [],pos = ( rneedsContext.test( selectors ) || typeof selectors !== "string" ) ?//获取jqUERY对象jQuery( selectors, context || this.context ) :0;for ( ; i < l; i++ ) {for ( cur = this[i]; cur && cur !== context; cur = cur.parentNode ) {// Always skip document fragmentsif ( cur.nodeType < 11 && (pos ?pos.index(cur) > -1 :// Don't pass non-elements to Sizzlecur.nodeType === 1 &&jQuery.find.matchesSelector(cur, selectors)) ) {cur = matched.push( cur );//找到就push进来break;//找到一个就跳出循环}}}
//入栈去重return this.pushStack( matched.length > 1 ? jQuery.unique( matched ) : matched );},// Determine the position of an element within// the matched set of elementsindex: function( elem ) {//console.log( $('#div1').index() );//1,这个元素在所有兄弟节点的排名if ( !elem ) {//this.first() = this.eq(0);return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;}//$('#span1').index('span') ;//span1在所有span中的排名if ( typeof elem === "string" ) {return core_indexOf.call( jQuery( elem ), this[ 0 ] );}// $('span').index( $('#span1') ) );return core_indexOf.call( this,// If it receives a jQuery object, the first element is usedelem.jquery ? elem[ 0 ] : elem);},//$('div').add('span').css('border','1px red solid');//div span变红add: function( selector, context ) {var set = typeof selector === "string" ?jQuery( selector, context ) :jQuery.makeArray( selector && selector.nodeType ? [ selector ] : selector ),
//this.get()是$('div')数组，set是'span'对象，合并成一个对象，all = jQuery.merge( this.get(), set );return this.pushStack( jQuery.unique(all) );},//$('div').find('span').css('color','red').addBack('.box').css('border','1px red solid');//addBack回到栈的下一层，并且当前层和下一层进行操作。addBack: function( selector ) {
//this是span，this.prevObject是div，return this.add( selector == null ?this.prevObject : this.prevObject.filter(selector));}
});function sibling( cur, dir ) {while ( (cur = cur[dir]) && cur.nodeType !== 1 ) {}return cur;
}//节点的获取
jQuery.each({parent: function( elem ) {//elem是每一个调用者divvar parent = elem.parentNode;return parent && parent.nodeType !== 11 ? parent : null;},parents: function( elem ) {return jQuery.dir( elem, "parentNode" );},parentsUntil: function( elem, i, until ) {return jQuery.dir( elem, "parentNode", until );},next: function( elem ) {return sibling( elem, "nextSibling" );},prev: function( elem ) {return sibling( elem, "previousSibling" );},nextAll: function( elem ) {return jQuery.dir( elem, "nextSibling" );},prevAll: function( elem ) {return jQuery.dir( elem, "previousSibling" );},nextUntil: function( elem, i, until ) {return jQuery.dir( elem, "nextSibling", until );},prevUntil: function( elem, i, until ) {return jQuery.dir( elem, "previousSibling", until );},siblings: function( elem ) {return jQuery.sibling( ( elem.parentNode || {} ).firstChild, elem );},children: function( elem ) {return jQuery.sibling( elem.firstChild );},contents: function( elem ) {//elem每一个divreturn elem.contentDocument || jQuery.merge( [], elem.childNodes );}
}, function( name, fn ) {//jQuery.fn[ name ]是对jQuery.prototype对象的方法扩展/*map: function( elems, callback, arg ) {if (   callback( elems[ i ], i, arg )   != null ) {ret[ ret.length ] =  callback( elems[ i ], i, arg );//末尾追加}return ret;}$('div').parentsUntil('body','div'), until, selector是'body','div'，与上面parentsUntil定义的无关，$('span').parents('body')*/jQuery.fn[ name ] = function( until, selector ) {var matched = jQuery.map( this, fn, until );//this是div集合，返回fn(this[i],i,until)结果的集合
//具体操作都是在这里，真正实现是fn函数里面if ( name.slice( -5 ) !== "Until" ) {selector = until;//seletor='body'}if ( selector && typeof selector === "string" ) {matched = jQuery.filter( selector, matched );}if ( this.length > 1 ) {/*guaranteedUnique = {children: true,contents: true,next: true,prev: true};*/if ( !guaranteedUnique[ name ] ) {//在json里面jQuery.unique( matched );//去重}// Reverse order for parents* and prev-derivativesif ( rparentsprev.test( name ) ) {matched.reverse();}}return this.pushStack( matched );};
});jQuery.extend({// jQuery.filter( '.box1', $('div'),true )   div中class有box1的filter: function( expr, elems, not ) {var elem = elems[ 0 ];if ( not ) {expr = ":not(" + expr + ")"; // :not(.box1)}return elems.length === 1 && elem.nodeType === 1 ?//Sizzle完成jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [] :jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {return elem.nodeType === 1;}));},dir: function( elem, dir, until ) {var matched = [],truncate = until !== undefined;while ( (elem = elem[ dir ]) && elem.nodeType !== 9 ) {if ( elem.nodeType === 1 ) {if ( truncate && jQuery( elem ).is( until ) ) {break;}matched.push( elem );}}return matched;},sibling: function( n, elem ) {var matched = [];for ( ; n; n = n.nextSibling ) {if ( n.nodeType === 1 && n !== elem ) {matched.push( n );}}return matched;}
});//winnow($('div'), '.box1' || [], true)  div中class有box1的
function winnow( elements, qualifier, not ) {//返回的是满足函数条件的elements元素集合/*$('div').filter(function(i,elem){return elem.className == 'box';}).css('border','1px red solid');*/if ( jQuery.isFunction( qualifier ) ) {//grep是elements每一个元素执行function()，函数传入的实参一个是每一个元素另一个元素下标，这里elem, i是形参， 并判断函数的返回值，函数体这里定义，return jQuery.grep( elements, function( elem, i ) {//!!是把undefined和null转换成falsereturn !!qualifier.call( elem, i, elem ) !== not;});//返回的是满足函数条件的elements：div元素集合}/*var oBox = document.getElementsByClassName('box')[0];$('div').filter(oBox).css('border','1px red solid');*/if ( qualifier.nodeType ) {return jQuery.grep( elements, function( elem ) {return ( elem === qualifier ) !== not;});}if ( typeof qualifier === "string" ) {//isSimple = /^.[^:#\[\.,]*$/  任意字符开头，不包括:#[.,一直到结束if ( isSimple.test( qualifier ) ) {//匹配成功：.box，#div1，:odd ，ul，li，divreturn jQuery.filter( qualifier, elements, not );}//匹配不成功div:odd，ul #li，ul[title='hello']，div.box，ul,liqualifier = jQuery.filter( qualifier, elements );}//匹配不成功return jQuery.grep( elements, function( elem ) {return ( core_indexOf.call( qualifier, elem ) >= 0 ) !== not;});
}var rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/gi,rtagName = /<([\w:]+)/,rhtml = /<|&#?\w+;/,rnoInnerhtml = /<(?:script|style|link)/i,manipulation_rcheckableType = /^(?:checkbox|radio)$/i,// checked="checked" or checkedrchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,rscriptType = /^$|\/(?:java|ecma)script/i,rscriptTypeMasked = /^true\/(.*)/,rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g,// We have to close these tags to support XHTML (#13200)wrapMap = {// Support: IE 9option: [ 1, "<select multiple='multiple'>", "</select>" ],thead: [ 1, "<table>", "</table>" ],col: [ 2, "<table><colgroup>", "</colgroup></table>" ],tr: [ 2, "<table><tbody>", "</tbody></table>" ],td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],_default: [ 0, "", "" ]};// Support: IE 9
wrapMap.optgroup = wrapMap.option;wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
wrapMap.th = wrapMap.td;jQuery.fn.extend({
//$('div').text('<h1>标题</h1>');//不会被解析成标签text: function( value ) {return jQuery.access( this, function( value ) {return value === undefined ?jQuery.text( this ) ://获取this.empty().append( ( this[ 0 ] && this[ 0 ].ownerDocument || document ).createTextNode( value ) );}, null, value, arguments.length );},/*$('span').append( oDiv );$('span').append( $('div') );$('span').append( '<div></div>' );*/append: function() {return this.domManip( arguments, function( elem ) {if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {var target = manipulationTarget( this, elem );target.appendChild( elem );}});},/*$('div').prepend( $('span') );//sopan添加到div里面的最前面//<div><span></span>div</div>*/prepend: function() {return this.domManip( arguments, function( elem ) {if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {//manipulationTarget是做兼容，返回的是thisvar target = manipulationTarget( this, elem );target.insertBefore( elem, target.firstChild );//firstChild第一个子节点}});},before: function() {return this.domManip( arguments, function( elem ) {if ( this.parentNode ) {//添加到this前面this.parentNode.insertBefore( elem, this );}});},after: function() {return this.domManip( arguments, function( elem ) {if ( this.parentNode ) {//添加到下一个兄弟节点前面。就是后面this.parentNode.insertBefore( elem, this.nextSibling );}});},// $('div').remove('.box');//删除节点remove: function( selector, keepData ) {var elem,elems = selector ? jQuery.filter( selector, this ) : this,i = 0;for ( ; (elem = elems[i]) != null; i++ ) {if ( !keepData && elem.nodeType === 1 ) {//gatAll删除子标签jQuery.cleanData( getAll( elem ) );//删除节点并且删除点击事件}if ( elem.parentNode ) {//标签中有script标签if ( keepData && jQuery.contains( elem.ownerDocument, elem ) ) {setGlobalEval( getAll( elem, "script" ) );}elem.parentNode.removeChild( elem );//删除这个节点，原生方法}}return this;},empty: function() {var elem,i = 0;for ( ; (elem = this[i]) != null; i++ ) {if ( elem.nodeType === 1 ) {// 清空data数据缓存和点击事件jQuery.cleanData( getAll( elem, false ) );// Remove any remaining nodeselem.textContent = "";}}return this;},//var cloneDiv3 = $('div').clone(true,true);//子元素有点击事件clone: function( dataAndEvents, deepDataAndEvents ) {dataAndEvents = dataAndEvents == null ? false : dataAndEvents;deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;
/*
（this.） map: function( callback ) {return this.pushStack( jQuery.map(this, function( elem, i ) {return callback.call( elem, i, elem );}));},
*/return this.map( function () {//this的每一个元素，调用f,返回f结果集合，结果.preObject= $('div'), 调用内部clone方法return jQuery.clone( this, dataAndEvents, deepDataAndEvents );});},html: function( value ) {return jQuery.access( this, function( value ) {var elem = this[ 0 ] || {},i = 0,l = this.length;if ( value === undefined && elem.nodeType === 1 ) {return elem.innerHTML;//$('span').html();原生获取方式}//设置$('span').html('<tr></tr>');// See if we can take a shortcut and just use innerHTMLif ( typeof value === "string" && !rnoInnerhtml.test( value ) &&!wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {value = value.replace( rxhtmlTag, "<$1></$2>" );try {for ( ; i < l; i++ ) {elem = this[ i ] || {};// Remove element nodes and prevent memory leaksif ( elem.nodeType === 1 ) {jQuery.cleanData( getAll( elem, false ) );elem.innerHTML = value;}}elem = 0;// If using innerHTML throws an exception, use the fallback method} catch( e ) {}}if ( elem ) {this.empty().append( value );//append添加节点}}, null, value, arguments.length );},replaceWith: function() {var// Snapshot the DOM in case .domManip sweeps something relevant into its fragmentargs = jQuery.map( this, function( elem ) {return [ elem.nextSibling, elem.parentNode ];}),i = 0;// Make the changes, replacing each context element with the new contentthis.domManip( arguments, function( elem ) {var next = args[ i++ ],parent = args[ i++ ];if ( parent ) {// Don't use the snapshot next if it has moved (#13810)if ( next && next.parentNode !== parent ) {next = this.nextSibling;}jQuery( this ).remove();parent.insertBefore( elem, next );}// Allow new content to include elements from the context set}, true );// Force removal if there was no new content (e.g., from empty arguments)return i ? this : this.remove();},//$('div').detach();detach: function( selector ) {return this.remove( selector, true );},domManip: function( args, callback, allowIntersection ) {// Flatten any nested arraysargs = core_concat.apply( [], args );var fragment, first, scripts, hasScripts, node, doc,i = 0,l = this.length,set = this,iNoClone = l - 1,value = args[ 0 ],isFunction = jQuery.isFunction( value );
/*$('span').append(function(){return 'hello';});
*/// We can't cloneNode fragments that contain checked, in WebKitif ( isFunction || !( l <= 1 || typeof value !== "string" || jQuery.support.checkClone || !rchecked.test( value ) ) ) {return this.each(function( index ) {var self = set.eq( index );if ( isFunction ) {args[ 0 ] = value.call( this, index, self.html() );}
//重新调用$('span').append('hello')self.domManip( args, callback, allowIntersection );});}if ( l ) {
//$('span').append('<h1>hello</h1>'); 文档碎片fragment = jQuery.buildFragment( args, this[ 0 ].ownerDocument, false, !allowIntersection && this );first = fragment.firstChild;if ( fragment.childNodes.length === 1 ) {fragment = first;}if ( first ) {scripts = jQuery.map( getAll( fragment, "script" ), disableScript );hasScripts = scripts.length;// Use the original fragment for the last item instead of the first because it can end up// being emptied incorrectly in certain situations (#8070).for ( ; i < l; i++ ) {node = fragment;if ( i !== iNoClone ) {node = jQuery.clone( node, true, true );// Keep references to cloned scripts for later restorationif ( hasScripts ) {// Support: QtWebKit// jQuery.merge because core_push.apply(_, arraylike) throwsjQuery.merge( scripts, getAll( node, "script" ) );}}callback.call( this[ i ], node, i );}if ( hasScripts ) {doc = scripts[ scripts.length - 1 ].ownerDocument;// Reenable scriptsjQuery.map( scripts, restoreScript );// Evaluate executable scripts on first document insertionfor ( i = 0; i < hasScripts; i++ ) {node = scripts[ i ];if ( rscriptType.test( node.type || "" ) &&!data_priv.access( node, "globalEval" ) && jQuery.contains( doc, node ) ) {if ( node.src ) {// Hope ajax is available...jQuery._evalUrl( node.src );} else {jQuery.globalEval( node.textContent.replace( rcleanScript, "" ) );}}}}}}return this;}
});jQuery.each({appendTo: "append",prependTo: "prepend",insertBefore: "before",insertAfter: "after",replaceAll: "replaceWith"
}, function( name, original ) {//$('span').appendTo( $('div') ).css('border','1px red solid');jQuery.fn[ name ] = function( selector ) {var elems,ret = [],insert = jQuery( selector ),//$('div')last = insert.length - 1,i = 0;for ( ; i <= last; i++ ) {elems = i === last ? this : this.clone( true );//调用jQuery($('div')[i]).append($('span'))jQuery( insert[ i ] )[ original ]( elems );// Support: QtWebKit// .get() because core_push.apply(_, arraylike) throwscore_push.apply( ret, elems.get() );}return this.pushStack( ret );};
});jQuery.extend({//jQuery.clone( $('div')每一个, true, true );clone: function( elem, dataAndEvents, deepDataAndEvents ) {var i, l, srcElements, destElements,clone = elem.cloneNode( true ),//原生的方式，克隆，仅仅复制html节点包括子节点，事件缓存没有复制过来//当前页inPage = jQuery.contains( elem.ownerDocument, elem );
/*
console.log(clone);//节点包括子节点。false就只有外层节点，没有子节点
var dd = getAll( elem );//[div, span, p]
var rr = getAll( clone );//[div, span, p]
*/
/*  Support: IE >= 9   if是兼容性$('input').prop('checked',true);$('input').clone().appendTo( 'body' );//jQuery克隆过去也是选中的，但是原生的是没有选中的，
*/if ( !jQuery.support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) && !jQuery.isXMLDoc( elem ) ) {// We eschew Sizzle here for performance reasons: http://jsperf.com/getall-vs-sizzle/2destElements = getAll( clone );//数组srcElements = getAll( elem );for ( i = 0, l = srcElements.length; i < l; i++ ) {fixInput( srcElements[ i ], destElements[ i ] );}}// Copy the events from the original to the cloneif ( dataAndEvents ) {//克隆自身的事件if ( deepDataAndEvents ) {//克隆子项的事件srcElements = srcElements || getAll( elem );destElements = destElements || getAll( clone );for ( i = 0, l = srcElements.length; i < l; i++ ) {cloneCopyEvent( srcElements[ i ], destElements[ i ] );}} else {//不克隆子项只克隆自身，原节点、复制的节点cloneCopyEvent( elem, clone );}}// 克隆的元素包含script标签destElements = getAll( clone, "script" );if ( destElements.length > 0 ) {//把script标签设置为全局script执行setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );}// Return the cloned setreturn clone;},//创建文档碎片buildFragment: function( elems, context, scripts, selection ) {var elem, tmp, tag, wrap, contains, j,i = 0,l = elems.length,fragment = context.createDocumentFragment(),nodes = [];//实现的结果for ( ; i < l; i++ ) {elem = elems[ i ];//每一个元素做处理if ( elem || elem === 0 ) {// Add nodes directlyif ( jQuery.type( elem ) === "object" ) {// Support: QtWebKit// jQuery.merge because core_push.apply(_, arraylike) throwsjQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );// Convert non-html into a text node} else if ( !rhtml.test( elem ) ) {nodes.push( context.createTextNode( elem ) );//$('span').append( '<h1>hello</h1><h1>hello</h1><h1>hello</h1>' ); 添加多标签用到文档碎片，效率高，} else {tmp = tmp || fragment.appendChild( context.createElement("div") );// Deserialize a standard representationtag = ( rtagName.exec( elem ) || ["", ""] )[ 1 ].toLowerCase();wrap = wrapMap[ tag ] || wrapMap._default;tmp.innerHTML = wrap[ 1 ] + elem.replace( rxhtmlTag, "<$1></$2>" ) + wrap[ 2 ];
/*wrapMap = {// Support: IE 9option: [ 1, "<select multiple='multiple'>", "</select>" ],thead: [ 1, "<table>", "</table>" ],col: [ 2, "<table><colgroup>", "</colgroup></table>" ],tr: [ 2, "<table><tbody>", "</tbody></table>" ],td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],_default: [ 0, "", "" ]};
*/j = wrap[ 0 ];while ( j-- ) {tmp = tmp.lastChild;}// Support: QtWebKit// jQuery.merge because core_push.apply(_, arraylike) throwsjQuery.merge( nodes, tmp.childNodes );// Remember the top-level containertmp = fragment.firstChild;// Fixes #12346// Support: Webkit, IEtmp.textContent = "";}}}// Remove wrapper from fragmentfragment.textContent = "";i = 0;while ( (elem = nodes[ i++ ]) ) {// #4087 - If origin and destination elements are the same, and this is// that element, do not do anythingif ( selection && jQuery.inArray( elem, selection ) !== -1 ) {continue;}contains = jQuery.contains( elem.ownerDocument, elem );// Append to fragmenttmp = getAll( fragment.appendChild( elem ), "script" );// Preserve script evaluation historyif ( contains ) {setGlobalEval( tmp );}// Capture executablesif ( scripts ) {  j = 0;while ( (elem = tmp[ j++ ]) ) {if ( rscriptType.test( elem.type || "" ) ) {scripts.push( elem );}}}}return fragment;},//清除元素的点击事件和数据（data保存的）cleanData: function( elems ) {var data, elem, events, type, key, j,special = jQuery.event.special,i = 0;for ( ; (elem = elems[ i ]) !== undefined; i++ ) {if ( Data.accepts( elem ) ) {key = elem[ data_priv.expando ];
//删除元素的点击事件，data里的事件if ( key && (data = data_priv.cache[ key ]) ) {events = Object.keys( data.events || {} );if ( events.length ) {for ( j = 0; (type = events[j]) !== undefined; j++ ) {if ( special[ type ] ) {//特殊事件，自定义事件jQuery.event.remove( elem, type );// This is a shortcut to avoid jQuery.event.remove's overhead} else {jQuery.removeEvent( elem, type, data.handle );}}}if ( data_priv.cache[ key ] ) {//删除缓存data里的// Discard any remaining `private` datadelete data_priv.cache[ key ];}}}// Discard any remaining `user` datadelete data_user.cache[ elem[ data_user.expando ] ];}},_evalUrl: function( url ) {return jQuery.ajax({url: url,type: "GET",dataType: "script",async: false,global: false,"throws": true});}
});// Support: 1.x compatibility
// Manipulating tables requires a tbody
function manipulationTarget( elem, content ) {return jQuery.nodeName( elem, "table" ) &&jQuery.nodeName( content.nodeType === 1 ? content : content.firstChild, "tr" ) ?
//没有tbody自动添加tbodyelem.getElementsByTagName("tbody")[0] ||elem.appendChild( elem.ownerDocument.createElement("tbody") ) :elem;
}// Replace/restore the type attribute of script elements for safe DOM manipulation
function disableScript( elem ) {elem.type = (elem.getAttribute("type") !== null) + "/" + elem.type;return elem;
}
function restoreScript( elem ) {var match = rscriptTypeMasked.exec( elem.type );if ( match ) {elem.type = match[ 1 ];} else {elem.removeAttribute("type");}return elem;
}// Mark scripts as having already been evaluated
function setGlobalEval( elems, refElements ) {var l = elems.length,i = 0;for ( ; i < l; i++ ) {data_priv.set(elems[ i ], "globalEval", !refElements || data_priv.get( refElements[ i ], "globalEval" ));}
}//cloneCopyEvent( elem, clone );  克隆事件，原节点目的节点，节点已经由原生方法克隆了，
function cloneCopyEvent( src, dest ) {var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events;if ( dest.nodeType !== 1 ) {return;}// 1. 从data中克隆事件if ( data_priv.hasData( src ) ) {pdataOld = data_priv.access( src );pdataCur = data_priv.set( dest, pdataOld );events = pdataOld.events;if ( events ) {delete pdataCur.handle;pdataCur.events = {};
//遍历for ( type in events ) {for ( i = 0, l = events[ type ].length; i < l; i++ ) {jQuery.event.add( dest, type, events[ type ][ i ] );}}}}// 2. 从data中克隆数据if ( data_user.hasData( src ) ) {udataOld = data_user.access( src );udataCur = jQuery.extend( {}, udataOld );
//遍历data_user.set( dest, udataCur );}
}function getAll( context, tag ) {var ret = context.getElementsByTagName ? context.getElementsByTagName( tag || "*" ) :context.querySelectorAll ? context.querySelectorAll( tag || "*" ) :[];return tag === undefined || tag && jQuery.nodeName( context, tag ) ?jQuery.merge( [ context ], ret ) :ret;
}// Support: IE >= 9
function fixInput( src, dest ) {var nodeName = dest.nodeName.toLowerCase();// Fails to persist the checked state of a cloned checkbox or radio button.if ( nodeName === "input" && manipulation_rcheckableType.test( src.type ) ) {dest.checked = src.checked;// Fails to return the selected option to the default selected state when cloning options} else if ( nodeName === "input" || nodeName === "textarea" ) {dest.defaultValue = src.defaultValue;}
}
jQuery.fn.extend({/*$('span').wrap('<div>');//每个span包一个div    $('span').wrapAll('<div>');//所有span只包一个div，如果span里面有其他标签会把这个标签移出来$('span').wrapInner('<div>');//每个span里面包一个div$('span').unwrap();//删除父级*/wrapAll: function( html ) {var wrap;if ( jQuery.isFunction( html ) ) {/*$('span').wrapAll(function(){return '<div>';});*/return this.each(function( i ) {//函数执行一次，然后用函数返回值再调用jQuery( this ).wrapAll( html.call(this, i) );});}if ( this[ 0 ] ) {// $('span').wrapAll('<div>'); 创建div对象并且克隆节点，事件也克隆wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );if ( this[ 0 ].parentNode ) {wrap.insertBefore( this[ 0 ] );//添加到第一个span的前面}wrap.map(function() {var elem = this;while ( elem.firstElementChild ) {elem = elem.firstElementChild;}return elem;}).append( this );}return this;},wrapInner: function( html ) {if ( jQuery.isFunction( html ) ) {return this.each(function( i ) {jQuery( this ).wrapInner( html.call(this, i) );});}return this.each(function() {var self = jQuery( this ),contents = self.contents();if ( contents.length ) {contents.wrapAll( html );} else {self.append( html );}});},
//分别包装wrap: function( html ) {var isFunction = jQuery.isFunction( html );return this.each(function( i ) {jQuery( this ).wrapAll( isFunction ? html.call(this, i) : html );});},
//找到父级，替换操作，删除父级，不能是bodyunwrap: function() {return this.parent().each(function() {if ( !jQuery.nodeName( this, "body" ) ) {jQuery( this ).replaceWith( this.childNodes );}}).end();}
});}DOM操作end///css操作开始
{
var curCSS, iframe,// swappable if display is none or starts with table except "table", "table-cell", or "table-caption"// see here for display values: https://developer.mozilla.org/en-US/docs/CSS/displayrdisplayswap = /^(none|table(?!-c[ea]).+)/,rmargin = /^margin/,rnumsplit = new RegExp( "^(" + core_pnum + ")(.*)$", "i" ),rnumnonpx = new RegExp( "^(" + core_pnum + ")(?!px)[a-z%]+$", "i" ),rrelNum = new RegExp( "^([+-])=(" + core_pnum + ")", "i" ),elemdisplay = { BODY: "block" },cssShow = { position: "absolute", visibility: "hidden", display: "block" },cssNormalTransform = {letterSpacing: 0,fontWeight: 400},cssExpand = [ "Top", "Right", "Bottom", "Left" ],cssPrefixes = [ "Webkit", "O", "Moz", "ms" ];// return a css property mapped to a potentially vendor prefixed property
function vendorPropName( style, name ) {// shortcut for names that are not vendor prefixedif ( name in style ) {return name;}// check for vendor prefixed namesvar capName = name.charAt(0).toUpperCase() + name.slice(1),origName = name,i = cssPrefixes.length;while ( i-- ) {name = cssPrefixes[ i ] + capName;if ( name in style ) {return name;}}return origName;
}function isHidden( elem, el ) {// isHidden might be called from jQuery#filter function;// in that case, element will be second argumentelem = el || elem;return jQuery.css( elem, "display" ) === "none" || !jQuery.contains( elem.ownerDocument, elem );//动态创建的元素也是不包含也是隐藏
}// NOTE: we've included the "window" in window.getComputedStyle
// because jsdom on node.js will break without it.
function getStyles( elem ) {return window.getComputedStyle( elem, null );//封装
}function showHide( elements, show ) {var display, elem, hidden,values = [],index = 0,length = elements.length;for ( ; index < length; index++ ) {elem = elements[ index ];if ( !elem.style ) {continue;}values[ index ] = data_priv.get( elem, "olddisplay" );display = elem.style.display;if ( show ) {// Reset the inline display of this element to learn if it is// being hidden by cascaded rules or notif ( !values[ index ] && display === "none" ) {elem.style.display = "";}// Set elements which have been overridden with display: none// in a stylesheet to whatever the default browser style is// for such an elementif ( elem.style.display === "" && isHidden( elem ) ) {values[ index ] = data_priv.access( elem, "olddisplay", css_defaultDisplay(elem.nodeName) );}} else {if ( !values[ index ] ) {hidden = isHidden( elem );if ( display && display !== "none" || !hidden ) {//获取元素原来的显示样式，块级元素是block行内元素是inlinedata_priv.set( elem, "olddisplay", hidden ? display : jQuery.css(elem, "display") );}}}}//每一个元素遍历for ( index = 0; index < length; index++ ) {elem = elements[ index ];if ( !elem.style ) {//有sytle属性通过style属性隐藏显示，没有就跳出。continue;}if ( !show || elem.style.display === "none" || elem.style.display === "" ) {//values[ index ] || ""，values[ index ]不存在时给空就是false,不直接写 = show ?  'block' ：'none'，因为是行内元素就不能是block而是in-line,
//元素一上来是隐藏状态是获取不到元素的display属性是块级还是行内，调用show的时候通过elem.nodeName动态创建，获取元素是块级还是行内。elem.style.display = show ? values[ index ] || "" : "none";}}return elements;
}jQuery.fn.extend({//$('#div1').css('color','yellow');css: function( name, value ) {return jQuery.access( this, function( elem, name, value ) {var styles, len,map = {},i = 0;
//$('#div1').css( ['color','backgroundColor','width'] )if ( jQuery.isArray( name ) ) {//数组获取styles = getStyles( elem );len = name.length;for ( ; i < len; i++ ) {//调用jQuery.css()方法来获取
//jQuery.css方法多个值获取传了4个参数，第三个参数是false相当于没传，只是占位隔开第四个参数，map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );}return map;}return value !== undefined ?jQuery.style( elem, name, value ) ://设置:$('#div1').css('color','yellow')jQuery.css( elem, name );//获取:$('#div1').css('color')，单个值获取只传了2个参数，后面2个参数没传相当于是false,}, name, value, arguments.length > 1 );},show: function() {return showHide( this, true );},hide: function() {return showHide( this );//没传就是false},toggle: function( state ) {if ( typeof state === "boolean" ) {return state ? this.show() : this.hide();}return this.each(function() {if ( isHidden( this ) ) {//jQuery对象里面每一个元素是js节点对象jQuery( this ).show();} else {jQuery( this ).hide();}});}
});jQuery.extend({// Add in style property hooks for overriding the default// behavior of getting and setting a style propertycssHooks: {opacity: {//透明度处理get: function( elem, computed ) {if ( computed ) {// We should always get a number back from opacityvar ret = curCSS( elem, "opacity" );return ret === "" ? "1" : ret;}}}},// Don't automatically add "px" to these possibly-unitless propertiescssNumber: {"columnCount": true,"fillOpacity": true,"fontWeight": true,"lineHeight": true,"opacity": true,"order": true,"orphans": true,"widows": true,"zIndex": true,"zoom": true},// Add in properties whose names you wish to fix before// setting or getting the valuecssProps: {// normalize float css property"float": "cssFloat"},//设置:jQuery.style( $('#div1')[i], 'float','left' )style: function( elem, name, value, extra ) {//元素节点的节点类型是3或者8，if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {return;}// Make sure that we're working with the right namevar ret, type, hooks,origName = jQuery.camelCase( name ),//转驼峰,background-color --> backgroundColorstyle = elem.style;//元素的所有style
//有就返回，没有就加入cssProps这个json,全部保存在$这个对象中。将float转成cssfloat，name = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( style, origName ) );// gets hook for the prefixed version// followed by the unprefixed versionhooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];// Check if we're setting a valueif ( value !== undefined ) {//设置type = typeof value;// convert relative number strings (+= or -=) to relative numbers. #7345//$('#div1').css('width','+=100');if ( type === "string" && (ret = rrelNum.exec( value )) ) {value = ( ret[1] + 1 ) * ret[2] + parseFloat( jQuery.css( elem, name ) );// Fixes bug #9237type = "number";}// value是空或者无限大，设置时候就返回，if ( value == null || type === "number" && isNaN( value ) ) {return;}// origName不在jQuery.cssNumber中，在jQuery.cssNumber中不需要加单位。if ( type === "number" && !jQuery.cssNumber[ origName ] ) {value += "px";//加单位}// Fixes #8908, it can be done more correctly by specifying setters in cssHooks,// but it would mean to define eight (for every problematic property) identical functionsif ( !jQuery.support.clearCloneStyle && value === "" && name.indexOf("background") === 0 ) {style[ name ] = "inherit";}// If a hook was provided, use that value, otherwise just set the specified valueif ( !hooks || !("set" in hooks) || (value = hooks.set( elem, value, extra )) !== undefined ) {style[ name ] = value;//没有兼容性，通过style.name = value设置}} else {//获取// If a hook was provided get the non-computed value from thereif ( hooks && "get" in hooks && (ret = hooks.get( elem, false, extra )) !== undefined ) {return ret;}// 没有兼容性，通过style.name获取return style[ name ];}},//获取:jQuery.css( $('#div1')[i], 'color' );css: function( elem, name, extra, styles ) {var val, num, hooks,
//$('#div1').css('background-color'); odiv.style.background-color是不行的，转驼峰成backgroundColororigName = jQuery.camelCase( name );//转驼峰，/*cssProps: {"float": "cssFloat"    //class  js中通过 className代表},*/
//有就返回，没有就加入cssProps这个json,全部保存在$这个对象中。name = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( elem.style, origName ) );// gets hook for the prefixed version// followed by the unprefixed versionhooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];// 获取值的兼容性处理if ( hooks && "get" in hooks ) {val = hooks.get( elem, true, extra );}// 不做兼容性处理调用curCSS方法获取if ( val === undefined ) {val = curCSS( elem, name, styles );}/*cssNormalTransform = {letterSpacing: 0,fontWeight: 400},返回的值是normal，并且属性名是letterSpacing、fontWeight就返回0、40*/if ( val === "normal" && name in cssNormalTransform ) {val = cssNormalTransform[ name ];}// 额外参数做判断if ( extra === "" || extra ) {num = parseFloat( val );//123px转换成123return extra === true || jQuery.isNumeric( num ) ? num || 0 : val;}return val;}
});//curCSS( $('#div1')[i], 'color')
curCSS = function( elem, name, _computed ) {var width, minWidth, maxWidth,computed = _computed || getStyles( elem ),//getStyles调用原生window.getComputedStyle( elem, null );提高性能// Support: IE9// getPropertyValue is only needed for .css('filter') in IE9, see #12537ret = computed ? computed.getPropertyValue( name ) || computed[ name ] : undefined,style = elem.style;if ( computed ) {
//ownerDocument获取元素所在页面的document，动态创建一个元素var $span = $('<span>') 就不包含，调用jQuery.style方法来获取，if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {ret = jQuery.style( elem, name );}// Support: Safari 5.1// A tribute to the "awesome hack by Dean Edwards"// Safari 5.1.7 (at least) returns percentage for a larger set of values, but width seems to be reliably pixels// this is against the CSSOM draft spec: http://dev.w3.org/csswg/cssom/#resolved-valuesif ( rnumnonpx.test( ret ) && rmargin.test( name ) ) {// Remember the original valueswidth = style.width;minWidth = style.minWidth;maxWidth = style.maxWidth;// Put in the new values to get a computed value outstyle.minWidth = style.maxWidth = style.width = ret;ret = computed.width;// Revert the changed valuesstyle.width = width;style.minWidth = minWidth;style.maxWidth = maxWidth;}}return ret;
};function setPositiveNumber( elem, value, subtract ) {var matches = rnumsplit.exec( value );return matches ?// Guard against undefined "subtract", e.g., when used as in cssHooksMath.max( 0, matches[ 1 ] - ( subtract || 0 ) ) + ( matches[ 2 ] || "px" ) :value;
}function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {var i = extra === ( isBorderBox ? "border" : "content" ) ?// If we already have the right measurement, avoid augmentation4 :// Otherwise initialize for horizontal or vertical propertiesname === "width" ? 1 : 0,val = 0;for ( ; i < 4; i += 2 ) {// both box models exclude margin, so add it if we want itif ( extra === "margin" ) {val += jQuery.css( elem, extra + cssExpand[ i ], true, styles );}if ( isBorderBox ) {// border-box includes padding, so remove it if we want contentif ( extra === "content" ) {val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );}// at this point, extra isn't border nor margin, so remove borderif ( extra !== "margin" ) {val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );}} else {// at this point, extra isn't content, so add paddingval += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );// at this point, extra isn't content nor padding, so add borderif ( extra !== "padding" ) {val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );}}}return val;
}function getWidthOrHeight( elem, name, extra ) {// Start with offset property, which is equivalent to the border-box valuevar valueIsBorderBox = true,val = name === "width" ? elem.offsetWidth : elem.offsetHeight,styles = getStyles( elem ),isBorderBox = jQuery.support.boxSizing && jQuery.css( elem, "boxSizing", false, styles ) === "border-box";// some non-html elements return undefined for offsetWidth, so check for null/undefined// svg - https://bugzilla.mozilla.org/show_bug.cgi?id=649285// MathML - https://bugzilla.mozilla.org/show_bug.cgi?id=491668if ( val <= 0 || val == null ) {// Fall back to computed then uncomputed css if necessaryval = curCSS( elem, name, styles );if ( val < 0 || val == null ) {val = elem.style[ name ];}// Computed unit is not pixels. Stop here and return.if ( rnumnonpx.test(val) ) {return val;}// we need the check for style in case a browser which returns unreliable values// for getComputedStyle silently falls back to the reliable elem.stylevalueIsBorderBox = isBorderBox && ( jQuery.support.boxSizingReliable || val === elem.style[ name ] );// Normalize "", auto, and prepare for extraval = parseFloat( val ) || 0;}// use the active box-sizing model to add/subtract irrelevant stylesreturn ( val +augmentWidthOrHeight(elem,name,extra || ( isBorderBox ? "border" : "content" ),valueIsBorderBox,styles)) + "px";
}//元素一上来是隐藏状态是获取不到元素的display属性是块级还是行内，调用show的时候通过elem.nodeName动态创建，获取元素是块级还是行内。
//css_defaultDisplay(elem.nodeName)  elem.nodeName=div或者span
function css_defaultDisplay( nodeName ) {var doc = document,/*elemdisplay = { BODY: "block" },*/display = elemdisplay[ nodeName ];if ( !display ) {//元素是body就是block,不是body就动态创建然后获取display属性，因为body不能动态创建display = actualDisplay( nodeName, doc );//动态创建// iframe情况if ( display === "none" || !display ) {//动态创建iframeiframe = ( iframe ||jQuery("<iframe frameborder='0' width='0' height='0'/>").css( "cssText", "display:block !important" )).appendTo( doc.documentElement );// Always write a new HTML skeleton so Webkit and Firefox don't choke on reusedoc = ( iframe[0].contentWindow || iframe[0].contentDocument ).document;doc.write("<!doctype html><html><body>");doc.close();//获取iframe里面的节点的display属性display = actualDisplay( nodeName, doc );iframe.detach();}// Store the correct default displayelemdisplay[ nodeName ] = display;}return display;
}// 动态创建元素actualDisplay( span, document )
function actualDisplay( name, doc ) {var elem = jQuery( doc.createElement( name ) ).appendTo( doc.body ),//创建添加到body中，动态创建元素肯定是显示的，display = jQuery.css( elem[0], "display" );//获取display值elem.remove();return display;
}jQuery.each([ "height", "width" ], function( i, name ) {jQuery.cssHooks[ name ] = {get: function( elem, computed, extra ) {if ( computed ) {// certain elements can have dimension info if we invisibly show them// however, it must have a current display style that would benefit from thisreturn elem.offsetWidth === 0 && rdisplayswap.test( jQuery.css( elem, "display" ) ) ?jQuery.swap( elem, cssShow, function() {return getWidthOrHeight( elem, name, extra );}) :getWidthOrHeight( elem, name, extra );}},set: function( elem, value, extra ) {var styles = extra && getStyles( elem );return setPositiveNumber( elem, value, extra ?augmentWidthOrHeight(elem,name,extra,jQuery.support.boxSizing && jQuery.css( elem, "boxSizing", false, styles ) === "border-box",styles) : 0);}};
});// These hooks cannot be added until DOM ready because the support test
// for it is not run until after DOM ready
jQuery(function() {// Support: Android 2.3if ( !jQuery.support.reliableMarginRight ) {jQuery.cssHooks.marginRight = {get: function( elem, computed ) {if ( computed ) {// Support: Android 2.3// WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right// Work around by temporarily setting element display to inline-blockreturn jQuery.swap( elem, { "display": "inline-block" },curCSS, [ elem, "marginRight" ] );}}};}// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084// getComputedStyle returns percent when specified for top/left/bottom/right// rather than make the css module depend on the offset module, we just check for it hereif ( !jQuery.support.pixelPosition && jQuery.fn.position ) {jQuery.each( [ "top", "left" ], function( i, prop ) {jQuery.cssHooks[ prop ] = {get: function( elem, computed ) {if ( computed ) {computed = curCSS( elem, prop );// if curCSS returns percentage, fallback to offsetreturn rnumnonpx.test( computed ) ?jQuery( elem ).position()[ prop ] + "px" :computed;}}};});}});if ( jQuery.expr && jQuery.expr.filters ) {jQuery.expr.filters.hidden = function( elem ) {// Support: Opera <= 12.12// Opera reports offsetWidths and offsetHeights less than zero on some elementsreturn elem.offsetWidth <= 0 && elem.offsetHeight <= 0;};jQuery.expr.filters.visible = function( elem ) {return !jQuery.expr.filters.hidden( elem );};
}// These hooks are used by animate to expand properties
jQuery.each({margin: "",padding: "",border: "Width"
}, function( prefix, suffix ) {jQuery.cssHooks[ prefix + suffix ] = {expand: function( value ) {var i = 0,expanded = {},// assumes a single number if not a stringparts = typeof value === "string" ? value.split(" ") : [ value ];for ( ; i < 4; i++ ) {expanded[ prefix + cssExpand[ i ] + suffix ] =parts[ i ] || parts[ i - 2 ] || parts[ 0 ];}return expanded;}};if ( !rmargin.test( prefix ) ) {jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;}
});
}//css操作结束
//ajax开始
{
var r20 = /%20/g,           //全部空格rbracket = /\[\]$/,   //结尾位置匹配中括号rCRLF = /\r?\n/g,rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,rsubmittable = /^(?:input|select|textarea|keygen)/i;jQuery.fn.extend({serialize: function() {return jQuery.param( this.serializeArray() );},//    console.log($('#form1').serializeArray());//[{'name':'a','value':'1'},{'name':'b','value':'2'}]serializeArray: function() {return this.map(function(){//map是数组都执行函数，返回结果集合//只有表单有elements属性。var elements = jQuery.prop( this, "elements" );return elements ? jQuery.makeArray( elements ) : this;}).filter(function(){var type = this.type;// Use .is(":disabled") so that fieldset[disabled] worksreturn this.name && !jQuery( this ).is( ":disabled" ) &&rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&( this.checked || !manipulation_rcheckableType.test( type ) );}).map(function( i, elem ){var val = jQuery( this ).val();return val == null ?null :jQuery.isArray( val ) ?jQuery.map( val, function( val ){return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };}) :{ name: elem.name, value: val.replace( rCRLF, "\r\n" ) };}).get();}
});//json对象、数组对象序列化成字符串
//$.param( [ {'name':1,'value':2} ] );//1=2,name为key,value为value
jQuery.param = function( a, traditional ) {var prefix,s = [],//定义一个函数add = function( key, value ) {//是函数就让函数执行，得到返回值value = jQuery.isFunction( value ) ? value() : ( value == null ? "" : value );//编码s[ s.length ] = encodeURIComponent( key ) + "=" + encodeURIComponent( value );};// Set traditional to true for jQuery <= 1.3.2 behavior.if ( traditional === undefined ) {traditional = jQuery.ajaxSettings && jQuery.ajaxSettings.traditional;}/*var $a = $(  [ {'name':1,'value':2},{'name':3,'value':4} ] )};    console.log( $.param($a) )*/if ( jQuery.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {// Serialize the form elementsjQuery.each( a, function() {add( this.name, this.value );//每一个a的name和value属性，});} else {// a={'name':[1,3],'value':2}，a={'name':{'a1':1,'a3':3},'value':2}   add是回调进行拼接for ( prefix in a ) {buildParams( prefix, a[ prefix ], traditional, add );}}// 通过&链接，return s.join( "&" ).replace( r20, "+" );
};//buildParams（name，[1,3]，traditional,add()）
buildParams（name，{'a1':1,'a3':3}，traditional,add()）
function buildParams( prefix, obj, traditional, add ) {var name;if ( jQuery.isArray( obj ) ) {jQuery.each( obj, function( i, v ) {if ( traditional || rbracket.test( prefix ) ) {//传统方式add( prefix, v );} else {// 多用三目运算符buildParams( prefix + "[" + ( typeof v === "object" ? i : "" ) + "]", v, traditional, add );}});} else if ( !traditional && jQuery.type( obj ) === "object" ) {// Serialize object item.for ( name in obj ) {buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );}} else {// 不是数组不是对象，普通方式add( prefix, obj );}
}var// Document locationajaxLocParts,ajaxLocation,ajax_nonce = jQuery.now(),ajax_rquery = /\?/,rhash = /#.*$/,rts = /([?&])_=[^&]*/,rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,// #7653, #8125, #8152: local protocol detectionrlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,rnoContent = /^(?:GET|HEAD)$/,rprotocol = /^\/\//,rurl = /^([\w.+-]+:)(?:\/\/([^\/?#:]*)(?::(\d+)|)|)/,// Keep a copy of the old load method_load = jQuery.fn.load,/* Prefilters* 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)* 2) These are called:*    - BEFORE asking for a transport*    - AFTER param serialization (s.data is a string if s.processData is true)* 3) key is the dataType* 4) the catchall symbol "*" can be used* 5) execution will start with transport dataType and THEN continue down to "*" if needed*///预过滤器，在发送ajax之前做一些处理prefilters = {},/* Transports bindings* 1) key is the dataType* 2) the catchall symbol "*" can be used* 3) selection will start with transport dataType and THEN go to "*" if needed*///分发器，transports = {},// Avoid comment-prolog char sequence (#10098); must appease lint and evade compressionallTypes = "*/".concat("*");// #8138, IE may throw an exception when accessing
// a field from window.location if document.domain has been set
try {ajaxLocation = location.href;
} catch( e ) {// 兼容性，动态创建a标签，a标签的href是空，然后就可以获取当前页面地址ajaxLocation = document.createElement( "a" );ajaxLocation.href = "";ajaxLocation = ajaxLocation.href;
}// Segment location into parts
ajaxLocParts = rurl.exec( ajaxLocation.toLowerCase() ) || [];// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
function addToPrefiltersOrTransports( structure ) {// dataTypeExpression is optional and defaults to "*"return function( dataTypeExpression, func ) {if ( typeof dataTypeExpression !== "string" ) {func = dataTypeExpression;dataTypeExpression = "*";}var dataType,i = 0,dataTypes = dataTypeExpression.toLowerCase().match( core_rnotwhite ) || [];if ( jQuery.isFunction( func ) ) {// For each dataType in the dataTypeExpressionwhile ( (dataType = dataTypes[i++]) ) {// Prepend if requestedif ( dataType[0] === "+" ) {dataType = dataType.slice( 1 ) || "*";(structure[ dataType ] = structure[ dataType ] || []).unshift( func );// Otherwise append} else {(structure[ dataType ] = structure[ dataType ] || []).push( func );}}}};
}// Base inspection function for prefilters and transports
function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {var inspected = {},seekingTransport = ( structure === transports );function inspect( dataType ) {var selected;inspected[ dataType ] = true;jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );if( typeof dataTypeOrTransport === "string" && !seekingTransport && !inspected[ dataTypeOrTransport ] ) {options.dataTypes.unshift( dataTypeOrTransport );inspect( dataTypeOrTransport );return false;} else if ( seekingTransport ) {return !( selected = dataTypeOrTransport );}});return selected;}return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
}// 继承
function ajaxExtend( target, src ) {var key, deep,flatOptions = jQuery.ajaxSettings.flatOptions || {};for ( key in src ) {if ( src[ key ] !== undefined ) {( flatOptions[ key ] ? target : ( deep || (deep = {}) ) )[ key ] = src[ key ];}}if ( deep ) {jQuery.extend( true, target, deep );}return target;
}// $('#div1').load("1.html ol,{'name':'hello'}",function(a,b,c){})
jQuery.fn.load = function( url, params, callback ) {if ( typeof url !== "string" && _load ) {return _load.apply( this, arguments );}var selector, type, response,self = this,off = url.indexOf(" ");if ( off >= 0 ) {selector = url.slice( off );url = url.slice( 0, off );}// If it's a functionif ( jQuery.isFunction( params ) ) {// We assume that it's the callbackcallback = params;params = undefined;// Otherwise, build a param string} else if ( params && typeof params === "object" ) {type = "POST";//对象是post方式}// If we have elements to modify, make the requestif ( self.length > 0 ) {jQuery.ajax({url: url,type: type,//默认是getdataType: "html",//返回数据类型data: params //传输数据}).done(function( responseText ) {//responseText返回的数据response = arguments;//self.html()添加到本元素的html内容中self.html( selector ? //有过滤器//动态创建div,添加返回的html,查找过滤器jQuery("<div>").append( jQuery.parseHTML( responseText ) ).find( selector ) :// Otherwise use the full resultresponseText );
//complete是完成不管成功失败}).complete( callback && function( jqXHR, status ) {self.each( callback, response || [ jqXHR.responseText, status, jqXHR ] );});}return this;
};// Attach a bunch of functions for handling common AJAX events
jQuery.each( [ "ajaxStart", "ajaxStop", "ajaxComplete", "ajaxError", "ajaxSuccess", "ajaxSend" ], function( i, type ){jQuery.fn[ type ] = function( fn ){return this.on( type, fn );};
});jQuery.extend({// Counter for holding the number of active queriesactive: 0,// Last-Modified header cache for next requestlastModified: {},etag: {},//ajax默认参数ajaxSettings: {url: ajaxLocation,//ajaxLocation = location.href;默认是当前页面地址type: "GET",isLocal: rlocalProtocol.test( ajaxLocParts[ 1 ] ), //是否本地global: true, //是否能触发全局事件参数processData: true,async: true,contentType: "application/x-www-form-urlencoded; charset=UTF-8",//数据编码操作，//注释是一样的，注释不写就是undefined，/*timeout: 0,     //超时处理，超时就提示是否继续等待还是离开还是刷新data: null,dataType: null,username: null,    //服务器的验证password: null,cache: null,   //cache:false,请求后面加一个时间戳，不会有缓存throws: false,  //traditional: false,  //传统模式headers: {},*/accepts: {"*": allTypes,text: "text/plain",html: "text/html",xml: "application/xml, text/xml",json: "application/json, text/javascript"},//检测响应头信息，判断返回的类型。contents: {xml: /xml/,html: /html/,json: /json/},responseFields: {xml: "responseXML",text: "responseText",json: "responseJSON"},// 根据返回的响应头信息，做不同的转换。converters: {// Convert anything to text"* text": String,// Text to html (true = no transformation)"text html": true,// Evaluate text as a json expression"text json": jQuery.parseJSON,// Parse text as xml"text xml": jQuery.parseXML},// For options that shouldn't be deep extended:// you can add your own custom options here if// and when you create one that shouldn't be// deep extended (see ajaxExtend)flatOptions: {url: true,context: true}},// 对json继承的封装ajaxSetup: function( target, settings ) {return settings ?//继承json过去ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :// Extending ajaxSettingsajaxExtend( jQuery.ajaxSettings, target );},ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),ajaxTransport: addToPrefiltersOrTransports( transports ),// Main method/*$.ajax({url:url,type:'post', success : function(){},error:function(){}});$.ajax('url',{type:'post', success : function(){},error:function(){}});*/ajax: function( url, options ) {//url是地址，options是jsonif ( typeof url === "object" ) {//url是json就赋值给optionsoptions = url;url = undefined;}// Force options to be an objectoptions = options || {};var transport,// URL without anti-cache paramcacheURL,// Response headersresponseHeadersString,responseHeaders,// timeout handletimeoutTimer,// Cross-domain detection varsparts,// To know if global events are to be dispatchedfireGlobals,// Loop variablei,//options覆盖默认参数，继承s = jQuery.ajaxSetup( {}, options ),// Callbacks contextcallbackContext = s.context || s,// Context for global events is callbackContext if it is a DOM node or jQuery collectionglobalEventContext = s.context && ( callbackContext.nodeType || callbackContext.jquery ) ?jQuery( callbackContext ) :jQuery.event,// 延迟对象，回调对象deferred = jQuery.Deferred(),completeDeferred = jQuery.Callbacks("once memory"),// Status-dependent callbacksstatusCode = s.statusCode || {},// Headers (they are sent all at once)requestHeaders = {},requestHeadersNames = {},// The jqXHR statestate = 0,// Default abort messagestrAbort = "canceled",// Fake xhrjqXHR = {readyState: 0,//0--4,4的时候就是完成了// 获取响应头getResponseHeader: function( key ) {var match;if ( state === 2 ) {if ( !responseHeaders ) {responseHeaders = {};while ( (match = rheaders.exec( responseHeadersString )) ) {responseHeaders[ match[1].toLowerCase() ] = match[ 2 ];}}match = responseHeaders[ key.toLowerCase() ];}return match == null ? null : match;},// Raw stringgetAllResponseHeaders: function() {return state === 2 ? responseHeadersString : null;},// 设置请求头setRequestHeader: function( name, value ) {var lname = name.toLowerCase();if ( !state ) {name = requestHeadersNames[ lname ] = requestHeadersNames[ lname ] || name;requestHeaders[ name ] = value;}return this;},// Overrides response content-type headeroverrideMimeType: function( type ) {if ( !state ) {s.mimeType = type;}return this;},// Status-dependent callbacksstatusCode: function( map ) {var code;if ( map ) {if ( state < 2 ) {for ( code in map ) {// Lazy-add the new callback in a way that preserves old onesstatusCode[ code ] = [ statusCode[ code ], map[ code ] ];}} else {// Execute the appropriate callbacksjqXHR.always( map[ jqXHR.status ] );}}return this;},// 错误的时候，例如超时，报错abort: function( statusText ) {var finalText = statusText || strAbort;if ( transport ) {transport.abort( finalText );}done( 0, finalText );return this;}};// 方法加进去deferred.promise( jqXHR ).complete = completeDeferred.add;jqXHR.success = jqXHR.done;jqXHR.error = jqXHR.fail;// 对url处理，s.url = ( ( url || s.url || ajaxLocation ) + "" ).replace( rhash, "" ).replace( rprotocol, ajaxLocParts[ 1 ] + "//" );// Alias method option to type as per ticket #12004s.type = options.method || options.type || s.method || s.type;// Extract dataTypes lists.dataTypes = jQuery.trim( s.dataType || "*" ).toLowerCase().match( core_rnotwhite ) || [""];// 跨域处理，不跟本网页是同一个主机地址。if ( s.crossDomain == null ) {parts = rurl.exec( s.url.toLowerCase() );s.crossDomain = !!( parts &&( parts[ 1 ] !== ajaxLocParts[ 1 ] || parts[ 2 ] !== ajaxLocParts[ 2 ] ||( parts[ 3 ] || ( parts[ 1 ] === "http:" ? "80" : "443" ) ) !==( ajaxLocParts[ 3 ] || ( ajaxLocParts[ 1 ] === "http:" ? "80" : "443" ) ) ));}// Convert data if not already a stringif ( s.data && s.processData && typeof s.data !== "string" ) {s.data = jQuery.param( s.data, s.traditional );}// 触发回调inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );// 请求完成了if ( state === 2 ) {return jqXHR;}// We can fire global events as of now if asked tofireGlobals = s.global;// Watch for a new set of requestsif ( fireGlobals && jQuery.active++ === 0 ) {jQuery.event.trigger("ajaxStart");}// Uppercase the types.type = s.type.toUpperCase();// Determine if request has contents.hasContent = !rnoContent.test( s.type );// Save the URL in case we're toying with the If-Modified-Since// and/or If-None-Match header later oncacheURL = s.url;// More options handling for requests with no contentif ( !s.hasContent ) {// If data is available, append data to urlif ( s.data ) {cacheURL = ( s.url += ( ajax_rquery.test( cacheURL ) ? "&" : "?" ) + s.data );// #9682: remove data so that it's not used in an eventual retrydelete s.data;}// 不缓存就添加随机数if ( s.cache === false ) {s.url = rts.test( cacheURL ) ?// If there is already a '_' parameter, set its valuecacheURL.replace( rts, "$1_=" + ajax_nonce++ ) :// Otherwise add one to the endcacheURL + ( ajax_rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ajax_nonce++;}}// 设置头信息，数据没有改变走缓存，通过后端配合，数据改变发起新的请求。if ( s.ifModified ) {if ( jQuery.lastModified[ cacheURL ] ) {jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );}if ( jQuery.etag[ cacheURL ] ) {jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );}}// Set the correct header, if data is being sentif ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {jqXHR.setRequestHeader( "Content-Type", s.contentType );}// 设置请求类型jqXHR.setRequestHeader("Accept",s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[0] ] ?s.accepts[ s.dataTypes[0] ] + ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :s.accepts[ "*" ]);// Check for headers optionfor ( i in s.headers ) {jqXHR.setRequestHeader( i, s.headers[ i ] );}// Allow custom headers/mimetypes and early abortif ( s.beforeSend && ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || state === 2 ) ) {// Abort if not done already and returnreturn jqXHR.abort();}// aborting is no longer a cancellationstrAbort = "abort";// Install callbacks on deferredsfor ( i in { success: 1, error: 1, complete: 1 } ) {jqXHR[ i ]( s[ i ] );}// Get transporttransport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );// If no transport, we auto-abortif ( !transport ) {done( -1, "No Transport" );} else {jqXHR.readyState = 1;// Send global eventif ( fireGlobals ) {globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );}// Timeoutif ( s.async && s.timeout > 0 ) {timeoutTimer = setTimeout(function() {jqXHR.abort("timeout");}, s.timeout );}try {state = 1;transport.send( requestHeaders, done );} catch ( e ) {// Propagate exception as error if not doneif ( state < 2 ) {done( -1, e );// Simply rethrow otherwise} else {throw e;}}}// Callback for when everything is donefunction done( status, nativeStatusText, responses, headers ) {var isSuccess, success, error, response, modified,statusText = nativeStatusText;// Called onceif ( state === 2 ) {return;}// State is "done" nowstate = 2;// Clear timeout if it existsif ( timeoutTimer ) {clearTimeout( timeoutTimer );}// Dereference transport for early garbage collection// (no matter how long the jqXHR object will be used)transport = undefined;// Cache response headersresponseHeadersString = headers || "";// Set readyStatejqXHR.readyState = status > 0 ? 4 : 0;// Determine if successfulisSuccess = status >= 200 && status < 300 || status === 304;// Get response dataif ( responses ) {response = ajaxHandleResponses( s, jqXHR, responses );}// Convert no matter what (that way responseXXX fields are always set)response = ajaxConvert( s, response, jqXHR, isSuccess );// If successful, handle type chainingif ( isSuccess ) {// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.if ( s.ifModified ) {modified = jqXHR.getResponseHeader("Last-Modified");if ( modified ) {jQuery.lastModified[ cacheURL ] = modified;}modified = jqXHR.getResponseHeader("etag");if ( modified ) {jQuery.etag[ cacheURL ] = modified;}}// if no contentif ( status === 204 || s.type === "HEAD" ) {statusText = "nocontent";// if not modified} else if ( status === 304 ) {statusText = "notmodified";// If we have data, let's convert it} else {statusText = response.state;success = response.data;error = response.error;isSuccess = !error;}} else {// We extract error from statusText// then normalize statusText and status for non-abortserror = statusText;if ( status || !statusText ) {statusText = "error";if ( status < 0 ) {status = 0;}}}// Set data for the fake xhr objectjqXHR.status = status;jqXHR.statusText = ( nativeStatusText || statusText ) + "";// Success/Errorif ( isSuccess ) {deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );} else {deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );}// Status-dependent callbacksjqXHR.statusCode( statusCode );statusCode = undefined;if ( fireGlobals ) {globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",[ jqXHR, s, isSuccess ? success : error ] );}// CompletecompleteDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );if ( fireGlobals ) {globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );// Handle the global AJAX counterif ( !( --jQuery.active ) ) {jQuery.event.trigger("ajaxStop");}}}
//ajax方法结束后，返回jqXHR对象，$.ajax()方法后面就可以调用done、fail方法，$.ajax({url:url}).done().fail();return jqXHR;},getJSON: function( url, data, callback ) {return jQuery.get( url, data, callback, "json" );//调用jQuery.ajax()},getScript: function( url, callback ) {//请求js不传递参数return jQuery.get( url, undefined, callback, "script" );//调用jQuery.ajax()}
});//["get","post"]每一个元素调用function( i, method )，i是索引method是'get'、'post'
jQuery.each( [ "get", "post" ], function( i, method ) {
//get，post挂载到jQuery静态方法,通过中括号挂载。
//$.get('url',{'aa':123},function(){'成功回调'},'返回数据类型xml、json')jQuery[ method ] = function( url, data, callback, type ) {// shift arguments if data argument was omittedif ( jQuery.isFunction( data ) ) {type = type || callback;callback = data;data = undefined;}return jQuery.ajax({url: url,type: method,dataType: type,data: data,success: callback});};
});/* Handles responses to an ajax request:* - finds the right dataType (mediates between content-type and expected dataType)* - returns the corresponding response*/
function ajaxHandleResponses( s, jqXHR, responses ) {var ct, type, finalDataType, firstDataType,contents = s.contents,dataTypes = s.dataTypes;// Remove auto dataType and get content-type in the processwhile( dataTypes[ 0 ] === "*" ) {dataTypes.shift();if ( ct === undefined ) {ct = s.mimeType || jqXHR.getResponseHeader("Content-Type");}}// Check if we're dealing with a known content-typeif ( ct ) {for ( type in contents ) {if ( contents[ type ] && contents[ type ].test( ct ) ) {dataTypes.unshift( type );break;}}}// Check to see if we have a response for the expected dataTypeif ( dataTypes[ 0 ] in responses ) {finalDataType = dataTypes[ 0 ];} else {// Try convertible dataTypesfor ( type in responses ) {if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[0] ] ) {finalDataType = type;break;}if ( !firstDataType ) {firstDataType = type;}}// Or just use first onefinalDataType = finalDataType || firstDataType;}// If we found a dataType// We add the dataType to the list if needed// and return the corresponding responseif ( finalDataType ) {if ( finalDataType !== dataTypes[ 0 ] ) {dataTypes.unshift( finalDataType );}return responses[ finalDataType ];}
}//类型转换器，匹配返回的数据类型
function ajaxConvert( s, response, jqXHR, isSuccess ) {var conv2, current, conv, tmp, prev,converters = {},// Work with a copy of dataTypes in case we need to modify it for conversiondataTypes = s.dataTypes.slice();// Create converters map with lowercased keysif ( dataTypes[ 1 ] ) {for ( conv in s.converters ) {converters[ conv.toLowerCase() ] = s.converters[ conv ];}}current = dataTypes.shift();// Convert to each sequential dataTypewhile ( current ) {if ( s.responseFields[ current ] ) {jqXHR[ s.responseFields[ current ] ] = response;}// Apply the dataFilter if providedif ( !prev && isSuccess && s.dataFilter ) {response = s.dataFilter( response, s.dataType );}prev = current;current = dataTypes.shift();if ( current ) {// There's only work to do if current dataType is non-autoif ( current === "*" ) {current = prev;// Convert response if prev dataType is non-auto and differs from current} else if ( prev !== "*" && prev !== current ) {// Seek a direct converterconv = converters[ prev + " " + current ] || converters[ "* " + current ];// If none found, seek a pairif ( !conv ) {for ( conv2 in converters ) {// If conv2 outputs currenttmp = conv2.split( " " );if ( tmp[ 1 ] === current ) {// If prev can be converted to accepted inputconv = converters[ prev + " " + tmp[ 0 ] ] ||converters[ "* " + tmp[ 0 ] ];if ( conv ) {// Condense equivalence convertersif ( conv === true ) {conv = converters[ conv2 ];// Otherwise, insert the intermediate dataType} else if ( converters[ conv2 ] !== true ) {current = tmp[ 0 ];dataTypes.unshift( tmp[ 1 ] );}break;}}}}// Apply converter (if not an equivalence)if ( conv !== true ) {// Unless errors are allowed to bubble, catch and return themif ( conv && s[ "throws" ] ) {response = conv( response );} else {try {response = conv( response );} catch ( e ) {return { state: "parsererror", error: conv ? e : "No conversion from " + prev + " to " + current };}}}}}}return { state: "success", data: response };
}
// Install script dataType
jQuery.ajaxSetup({accepts: {script: "text/javascript, application/javascript, application/ecmascript, application/x-ecmascript"},contents: {script: /(?:java|ecma)script/},converters: {"text script": function( text ) {jQuery.globalEval( text );return text;}}
});// 发送ajax之前对数据做处理
jQuery.ajaxPrefilter( "script", function( s ) {if ( s.cache === undefined ) {s.cache = false;}if ( s.crossDomain ) {s.type = "GET";}
});// Bind script tag hack transport
jQuery.ajaxTransport( "script", function( s ) {// This transport only deals with cross domain requestsif ( s.crossDomain ) {var script, callback;return {send: function( _, complete ) {script = jQuery("<script>").prop({async: true,charset: s.scriptCharset,src: s.url}).on("load error",callback = function( evt ) {script.remove();callback = null;if ( evt ) {complete( evt.type === "error" ? 404 : 200, evt.type );}});document.head.appendChild( script[ 0 ] );},abort: function() {if ( callback ) {callback();}}};}
});
var oldCallbacks = [],rjsonp = /(=)\?(?=&|$)|\?\?/;// Default jsonp settings
jQuery.ajaxSetup({jsonp: "callback",jsonpCallback: function() {var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( ajax_nonce++ ) );this[ callback ] = true;return callback;}
});// Detect, normalize options and install callbacks for jsonp requests
jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {var callbackName, overwritten, responseContainer,jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?"url" :typeof s.data === "string" && !( s.contentType || "" ).indexOf("application/x-www-form-urlencoded") && rjsonp.test( s.data ) && "data");// Handle iff the expected data type is "jsonp" or we have a parameter to setif ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {// Get callback name, remembering preexisting value associated with itcallbackName = s.jsonpCallback = jQuery.isFunction( s.jsonpCallback ) ?s.jsonpCallback() :s.jsonpCallback;// Insert callback into url or form dataif ( jsonProp ) {s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );} else if ( s.jsonp !== false ) {s.url += ( ajax_rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;}// Use data converter to retrieve json after script executions.converters["script json"] = function() {if ( !responseContainer ) {jQuery.error( callbackName + " was not called" );}return responseContainer[ 0 ];};// force json dataTypes.dataTypes[ 0 ] = "json";// Install callbackoverwritten = window[ callbackName ];window[ callbackName ] = function() {responseContainer = arguments;};// Clean-up function (fires after converters)jqXHR.always(function() {// Restore preexisting valuewindow[ callbackName ] = overwritten;// Save back as freeif ( s[ callbackName ] ) {// make sure that re-using the options doesn't screw things arounds.jsonpCallback = originalSettings.jsonpCallback;// save the callback name for future useoldCallbacks.push( callbackName );}// Call if it was a function and we have a responseif ( responseContainer && jQuery.isFunction( overwritten ) ) {overwritten( responseContainer[ 0 ] );}responseContainer = overwritten = undefined;});// Delegate to scriptreturn "script";}
});
jQuery.ajaxSettings.xhr = function() {try {return new XMLHttpRequest();} catch( e ) {}
};var xhrSupported = jQuery.ajaxSettings.xhr(),xhrSuccessStatus = {// file protocol always yields status code 0, assume 2000: 200,// Support: IE9// #1450: sometimes IE returns 1223 when it should be 2041223: 204},// Support: IE9// We need to keep track of outbound xhr and abort them manually// because IE is not smart enough to do it all by itselfxhrId = 0,xhrCallbacks = {};if ( window.ActiveXObject ) {jQuery( window ).on( "unload", function() {for( var key in xhrCallbacks ) {xhrCallbacks[ key ]();}xhrCallbacks = undefined;});
}jQuery.support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
jQuery.support.ajax = xhrSupported = !!xhrSupported;jQuery.ajaxTransport(function( options ) {var callback;// Cross domain only allowed if supported through XMLHttpRequestif ( jQuery.support.cors || xhrSupported && !options.crossDomain ) {return {send: function( headers, complete ) {var i, id,//xhr是原生XMLHttpRequest对象xhr = options.xhr();xhr.open( options.type, options.url, options.async, options.username, options.password );// Apply custom fields if providedif ( options.xhrFields ) {for ( i in options.xhrFields ) {xhr[ i ] = options.xhrFields[ i ];}}// 跨域处理if ( options.mimeType && xhr.overrideMimeType ) {xhr.overrideMimeType( options.mimeType );}// X-Requested-With header// For cross-domain requests, seeing as conditions for a preflight are// akin to a jigsaw puzzle, we simply never set it to be sure.// (it can always be set on a per-request basis or even using ajaxSetup)// For same-domain requests, won't change header if already provided.if ( !options.crossDomain && !headers["X-Requested-With"] ) {headers["X-Requested-With"] = "XMLHttpRequest";}// Set headersfor ( i in headers ) {xhr.setRequestHeader( i, headers[ i ] );}// Callbackcallback = function( type ) {return function() {if ( callback ) {delete xhrCallbacks[ id ];callback = xhr.onload = xhr.onerror = null;if ( type === "abort" ) {xhr.abort();} else if ( type === "error" ) {complete(// file protocol always yields status 0, assume 404xhr.status || 404,xhr.statusText);} else {complete(xhrSuccessStatus[ xhr.status ] || xhr.status,xhr.statusText,// Support: IE9// #11426: When requesting binary data, IE9 will throw an exception// on any attempt to access responseTexttypeof xhr.responseText === "string" ? {text: xhr.responseText} : undefined,xhr.getAllResponseHeaders());}}};};// 真正完成才会走onloadxhr.onload = callback();xhr.onerror = callback("error");// Create the abort callbackcallback = xhrCallbacks[( id = xhrId++ )] = callback("abort");// Do send the request// This may raise an exception which is actually// handled in jQuery.ajax (so no try/catch here)//发送xhr.send( options.hasContent && options.data || null );},abort: function() {if ( callback ) {callback();}}};}
});}
//ajax结束//animate() : 运动的方法开始
{
var fxNow, timerId,rfxtypes = /^(?:toggle|show|hide)$/,rfxnum = new RegExp( "^(?:([+-])=|)(" + core_pnum + ")([a-z%]*)$", "i" ),rrun = /queueHooks$/,animationPrefilters = [ defaultPrefilter ],tweeners = {"*": [function( prop, value ) {var tween = this.createTween( prop, value ),target = tween.cur(),parts = rfxnum.exec( value ),unit = parts && parts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),// Starting value computation is required for potential unit mismatchesstart = ( jQuery.cssNumber[ prop ] || unit !== "px" && +target ) &&rfxnum.exec( jQuery.css( tween.elem, prop ) ),scale = 1,maxIterations = 20;if ( start && start[ 3 ] !== unit ) {// Trust units reported by jQuery.cssunit = unit || start[ 3 ];// Make sure we update the tween properties later onparts = parts || [];// Iteratively approximate from a nonzero starting pointstart = +target || 1;do {// If previous iteration zeroed out, double until we get *something*// Use a string for doubling factor so we don't accidentally see scale as unchanged belowscale = scale || ".5";// Adjust and applystart = start / scale;jQuery.style( tween.elem, prop, start + unit );// Update scale, tolerating zero or NaN from tween.cur()// And breaking the loop if scale is unchanged or perfect, or if we've just had enough} while ( scale !== (scale = tween.cur() / target) && scale !== 1 && --maxIterations );}// Update tween propertiesif ( parts ) {start = tween.start = +start || +target || 0;tween.unit = unit;// If a +=/-= token was provided, we're doing a relative animationtween.end = parts[ 1 ] ?start + ( parts[ 1 ] + 1 ) * parts[ 2 ] :+parts[ 2 ];}return tween;}]};// Animations created synchronously will run synchronously
function createFxNow() {setTimeout(function() {fxNow = undefined;});return ( fxNow = jQuery.now() );
}function createTween( value, prop, animation ) {var tween,collection = ( tweeners[ prop ] || [] ).concat( tweeners[ "*" ] ),index = 0,length = collection.length;for ( ; index < length; index++ ) {if ( (tween = collection[ index ].call( animation, prop, value )) ) {// we're done with this propertyreturn tween;}}
}function Animation( elem, properties, options ) {var result,stopped,index = 0,length = animationPrefilters.length,deferred = jQuery.Deferred().always( function() {// don't match elem in the :animated selectordelete tick.elem;}),tick = function() {if ( stopped ) {return false;}var currentTime = fxNow || createFxNow(),remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),// archaic crash bug won't allow us to use 1 - ( 0.5 || 0 ) (#12497)temp = remaining / animation.duration || 0,percent = 1 - temp,index = 0,length = animation.tweens.length;for ( ; index < length ; index++ ) {animation.tweens[ index ].run( percent );}deferred.notifyWith( elem, [ animation, percent, remaining ]);if ( percent < 1 && length ) {return remaining;} else {deferred.resolveWith( elem, [ animation ] );return false;}},animation = deferred.promise({elem: elem,props: jQuery.extend( {}, properties ),opts: jQuery.extend( true, { specialEasing: {} }, options ),originalProperties: properties,originalOptions: options,startTime: fxNow || createFxNow(),duration: options.duration,tweens: [],createTween: function( prop, end ) {var tween = jQuery.Tween( elem, animation.opts, prop, end,animation.opts.specialEasing[ prop ] || animation.opts.easing );animation.tweens.push( tween );return tween;},stop: function( gotoEnd ) {var index = 0,// if we are going to the end, we want to run all the tweens// otherwise we skip this partlength = gotoEnd ? animation.tweens.length : 0;if ( stopped ) {return this;}stopped = true;for ( ; index < length ; index++ ) {animation.tweens[ index ].run( 1 );}// resolve when we played the last frame// otherwise, rejectif ( gotoEnd ) {deferred.resolveWith( elem, [ animation, gotoEnd ] );} else {deferred.rejectWith( elem, [ animation, gotoEnd ] );}return this;}}),props = animation.props;propFilter( props, animation.opts.specialEasing );for ( ; index < length ; index++ ) {result = animationPrefilters[ index ].call( animation, elem, props, animation.opts );if ( result ) {return result;}}jQuery.map( props, createTween, animation );if ( jQuery.isFunction( animation.opts.start ) ) {animation.opts.start.call( elem, animation );}jQuery.fx.timer(jQuery.extend( tick, {elem: elem,anim: animation,queue: animation.opts.queue}));// attach callbacks from optionsreturn animation.progress( animation.opts.progress ).done( animation.opts.done, animation.opts.complete ).fail( animation.opts.fail ).always( animation.opts.always );
}//属性的过滤操作
function propFilter( props, specialEasing ) {var index, name, easing, value, hooks;// camelCase, specialEasing and expand cssHook passfor ( index in props ) {name = jQuery.camelCase( index );easing = specialEasing[ name ];value = props[ index ];if ( jQuery.isArray( value ) ) {easing = value[ 1 ];value = props[ index ] = value[ 0 ];}if ( index !== name ) {props[ name ] = value;delete props[ index ];}hooks = jQuery.cssHooks[ name ];if ( hooks && "expand" in hooks ) {value = hooks.expand( value );delete props[ name ];// not quite $.extend, this wont overwrite keys already present.// also - reusing 'index' from above because we have the correct "name"for ( index in value ) {if ( !( index in props ) ) {props[ index ] = value[ index ];specialEasing[ index ] = easing;}}} else {specialEasing[ name ] = easing;}}
}jQuery.Animation = jQuery.extend( Animation, {tweener: function( props, callback ) {if ( jQuery.isFunction( props ) ) {callback = props;props = [ "*" ];} else {props = props.split(" ");}var prop,index = 0,length = props.length;for ( ; index < length ; index++ ) {prop = props[ index ];tweeners[ prop ] = tweeners[ prop ] || [];tweeners[ prop ].unshift( callback );}},prefilter: function( callback, prepend ) {if ( prepend ) {animationPrefilters.unshift( callback );} else {animationPrefilters.push( callback );}}
});function defaultPrefilter( elem, props, opts ) {/* jshint validthis: true */var prop, value, toggle, tween, hooks, oldfire,anim = this,orig = {},style = elem.style,hidden = elem.nodeType && isHidden( elem ),dataShow = data_priv.get( elem, "fxshow" );// handle queue: false promisesif ( !opts.queue ) {hooks = jQuery._queueHooks( elem, "fx" );if ( hooks.unqueued == null ) {hooks.unqueued = 0;oldfire = hooks.empty.fire;hooks.empty.fire = function() {if ( !hooks.unqueued ) {oldfire();}};}hooks.unqueued++;anim.always(function() {// doing this makes sure that the complete handler will be called// before this completesanim.always(function() {hooks.unqueued--;if ( !jQuery.queue( elem, "fx" ).length ) {hooks.empty.fire();}});});}// height/width overflow passif ( elem.nodeType === 1 && ( "height" in props || "width" in props ) ) {// Make sure that nothing sneaks out// Record all 3 overflow attributes because IE9-10 do not// change the overflow attribute when overflowX and// overflowY are set to the same valueopts.overflow = [ style.overflow, style.overflowX, style.overflowY ];// Set display property to inline-block for height/width// animations on inline elements that are having width/height animatedif ( jQuery.css( elem, "display" ) === "inline" &&jQuery.css( elem, "float" ) === "none" ) {style.display = "inline-block";}}if ( opts.overflow ) {style.overflow = "hidden";anim.always(function() {style.overflow = opts.overflow[ 0 ];style.overflowX = opts.overflow[ 1 ];style.overflowY = opts.overflow[ 2 ];});}// show/hide passfor ( prop in props ) {value = props[ prop ];if ( rfxtypes.exec( value ) ) {delete props[ prop ];toggle = toggle || value === "toggle";if ( value === ( hidden ? "hide" : "show" ) ) {// If there is dataShow left over from a stopped hide or show and we are going to proceed with show, we should pretend to be hiddenif ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {hidden = true;} else {continue;}}orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );}}if ( !jQuery.isEmptyObject( orig ) ) {if ( dataShow ) {if ( "hidden" in dataShow ) {hidden = dataShow.hidden;}} else {dataShow = data_priv.access( elem, "fxshow", {} );}// store state if its toggle - enables .stop().toggle() to "reverse"if ( toggle ) {dataShow.hidden = !hidden;}if ( hidden ) {jQuery( elem ).show();} else {anim.done(function() {jQuery( elem ).hide();});}anim.done(function() {var prop;data_priv.remove( elem, "fxshow" );for ( prop in orig ) {jQuery.style( elem, prop, orig[ prop ] );}});for ( prop in orig ) {tween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );if ( !( prop in dataShow ) ) {dataShow[ prop ] = tween.start;if ( hidden ) {tween.end = tween.start;tween.start = prop === "width" || prop === "height" ? 1 : 0;}}}}
}function Tween( elem, options, prop, end, easing ) {return new Tween.prototype.init( elem, options, prop, end, easing );
}
jQuery.Tween = Tween;Tween.prototype = {constructor: Tween,init: function( elem, options, prop, end, easing, unit ) {this.elem = elem;this.prop = prop;this.easing = easing || "swing";this.options = options;this.start = this.now = this.cur();this.end = end;this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );},cur: function() {var hooks = Tween.propHooks[ this.prop ];return hooks && hooks.get ?hooks.get( this ) :Tween.propHooks._default.get( this );},//执行运动算法run: function( percent ) {var eased,hooks = Tween.propHooks[ this.prop ];if ( this.options.duration ) {this.pos = eased = jQuery.easing[ this.easing ](percent, this.options.duration * percent, 0, 1, this.options.duration);} else {this.pos = eased = percent;}this.now = ( this.end - this.start ) * eased + this.start;if ( this.options.step ) {this.options.step.call( this.elem, this.now, this );}if ( hooks && hooks.set ) {hooks.set( this );} else {Tween.propHooks._default.set( this );}return this;}
};Tween.prototype.init.prototype = Tween.prototype;Tween.propHooks = {_default: {get: function( tween ) {var result;if ( tween.elem[ tween.prop ] != null &&(!tween.elem.style || tween.elem.style[ tween.prop ] == null) ) {return tween.elem[ tween.prop ];}// passing an empty string as a 3rd parameter to .css will automatically// attempt a parseFloat and fallback to a string if the parse fails// so, simple values such as "10px" are parsed to Float.// complex values such as "rotate(1rad)" are returned as is.result = jQuery.css( tween.elem, tween.prop, "" );// Empty strings, null, undefined and "auto" are converted to 0.return !result || result === "auto" ? 0 : result;},set: function( tween ) {// use step hook for back compat - use cssHook if its there - use .style if its// available and use plain properties where availableif ( jQuery.fx.step[ tween.prop ] ) {jQuery.fx.step[ tween.prop ]( tween );} else if ( tween.elem.style && ( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null || jQuery.cssHooks[ tween.prop ] ) ) {jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );} else {tween.elem[ tween.prop ] = tween.now;}}}
};// Support: IE9
// Panic based approach to setting things on disconnected nodesTween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {set: function( tween ) {if ( tween.elem.nodeType && tween.elem.parentNode ) {tween.elem[ tween.prop ] = tween.now;}}
};jQuery.each([ "toggle", "show", "hide" ], function( i, name ) {var cssFn = jQuery.fn[ name ];//之前的方法jQuery.fn[ name ] = function( speed, easing, callback ) {return speed == null || typeof speed === "boolean" ?cssFn.apply( this, arguments ) ://有参数调用原来的this.animate( genFx( name, true ), speed, easing, callback );//没参数调用animate，genFx( name, true )返回一个json:{ width : 'hide' , height : 'hide' , opacity : 'hide' }};
});jQuery.fn.extend({fadeTo: function( speed, to, easing, callback ) {// 如果是隐藏，设置透明度是0再显示，再做动画。return this.filter( isHidden ).css( "opacity", 0 ).show()// animate to the value specified.end().animate({ opacity: to }, speed, easing, callback );},/*$('#div1').animate({ height : 300 },1000);//配置写运动$('#div1').animate({ width : 400 },{duration : 'slow',  //速度慢速easing : 'linear',  //匀速complete : function(){  //完成回调alert(111);}});*/animate: function( prop, speed, easing, callback ) {var empty = jQuery.isEmptyObject( prop ),optall = jQuery.speed( speed, easing, callback ),//参数做配置doAnimation = function() {// Operate on a copy of prop so per-property easing won't be lostvar anim = Animation( this, jQuery.extend( {}, prop ), optall );// Empty animations, or finishing resolves immediatelyif ( empty || data_priv.get( this, "finish" ) ) {anim.stop( true );}};doAnimation.finish = doAnimation;return empty || optall.queue === false ?this.each( doAnimation ) ://遍历函数this.queue( optall.queue, doAnimation );//入队，doAnimation入队的每一个函数},stop: function( type, clearQueue, gotoEnd ) {var stopQueue = function( hooks ) {var stop = hooks.stop;delete hooks.stop;stop( gotoEnd );};if ( typeof type !== "string" ) {gotoEnd = clearQueue;clearQueue = type;type = undefined;}if ( clearQueue && type !== false ) {//truethis.queue( type || "fx", [] );//队列清空}return this.each(function() {var dequeue = true,index = type != null && type + "queueHooks",timers = jQuery.timers,data = data_priv.get( this );if ( index ) {if ( data[ index ] && data[ index ].stop ) {stopQueue( data[ index ] );}} else {for ( index in data ) {if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {stopQueue( data[ index ] );}}}for ( index = timers.length; index--; ) {if ( timers[ index ].elem === this && (type == null || timers[ index ].queue === type) ) {timers[ index ].anim.stop( gotoEnd );dequeue = false;timers.splice( index, 1 );}}// start the next in the queue if the last step wasn't forced// timers currently will call their complete callbacks, which will dequeue// but only if they were gotoEndif ( dequeue || !gotoEnd ) {jQuery.dequeue( this, type );}});},finish: function( type ) {if ( type !== false ) {type = type || "fx";}return this.each(function() {var index,data = data_priv.get( this ),queue = data[ type + "queue" ],hooks = data[ type + "queueHooks" ],timers = jQuery.timers,length = queue ? queue.length : 0;// enable finishing flag on private datadata.finish = true;// empty the queue firstjQuery.queue( this, type, [] );if ( hooks && hooks.stop ) {hooks.stop.call( this, true );}// look for any active animations, and finish themfor ( index = timers.length; index--; ) {if ( timers[ index ].elem === this && timers[ index ].queue === type ) {timers[ index ].anim.stop( true );timers.splice( index, 1 );}}// look for any animations in the old queue and finish themfor ( index = 0; index < length; index++ ) {if ( queue[ index ] && queue[ index ].finish ) {queue[ index ].finish.call( this );}}// turn off finishing flagdelete data.finish;});}
});// 创建json:{ width : 'hide' , height : 'hide' , opacity : 'hide' }
function genFx( type, includeWidth ) {var which,attrs = { height: type },i = 0;// if we include width, step value is 1 to do all cssExpand values,// if we don't include width, step value is 2 to skip over Left and RightincludeWidth = includeWidth? 1 : 0;//for( ; i < 4 ; i += 2 - includeWidth ) {which = cssExpand[ i ];attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;}if ( includeWidth ) {attrs.opacity = attrs.width = type;}return attrs;
}// Generate shortcuts for custom animations
jQuery.each({slideDown: genFx("show"),slideUp: genFx("hide"),slideToggle: genFx("toggle"),fadeIn: { opacity: "show" },fadeOut: { opacity: "hide" },fadeToggle: { opacity: "toggle" }
}, function( name, props ) {jQuery.fn[ name ] = function( speed, easing, callback ) {return this.animate( props, speed, easing, callback );};
});jQuery.speed = function( speed, easing, fn ) {var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {complete: fn || !fn && easing ||jQuery.isFunction( speed ) && speed,duration: speed,easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing};jQuery.fx.off = true;  //关闭页面所有的运动，运动时间为0，opt.duration = jQuery.fx.off ? 0 : typeof opt.duration === "number" ? opt.duration :/*jQuery.fx.speeds = {slow: 600,fast: 200,// Default speed_default: 400};*/opt.duration in jQuery.fx.speeds ? jQuery.fx.speeds[ opt.duration ] : jQuery.fx.speeds._default;// normalize opt.queue - true/undefined/null -> "fx"if ( opt.queue == null || opt.queue === true ) {opt.queue = "fx";}// 自己写的completeopt.old = opt.complete;opt.complete = function() {if ( jQuery.isFunction( opt.old ) ) {opt.old.call( this );}if ( opt.queue ) {jQuery.dequeue( this, opt.queue );}};return opt;
};jQuery.easing = {linear: function( p ) {return p;},swing: function( p ) {return 0.5 - Math.cos( p*Math.PI ) / 2;}
};jQuery.timers = [];
jQuery.fx = Tween.prototype.init;
jQuery.fx.tick = function() {var timer,timers = jQuery.timers,i = 0;fxNow = jQuery.now();for ( ; i < timers.length; i++ ) {timer = timers[ i ];// Checks the timer has not already been removedif ( !timer() && timers[ i ] === timer ) {timers.splice( i--, 1 );}}if ( !timers.length ) {jQuery.fx.stop();//停止运动}fxNow = undefined;
};jQuery.fx.timer = function( timer ) {if ( timer() && jQuery.timers.push( timer ) ) {jQuery.fx.start();}
};jQuery.fx.interval = 13;jQuery.fx.start = function() {if ( !timerId ) {timerId = setInterval( jQuery.fx.tick, jQuery.fx.interval );}
};jQuery.fx.stop = function() {clearInterval( timerId );timerId = null;
};jQuery.fx.speeds = {slow: 600,fast: 200,// Default speed_default: 400
};
}
//animate() : 运动的方法结束
// Back Compat <1.8 extension point
jQuery.fx.step = {};if ( jQuery.expr && jQuery.expr.filters ) {jQuery.expr.filters.animated = function( elem ) {return jQuery.grep(jQuery.timers, function( fn ) {return elem === fn.elem;}).length;};
}
jQuery.fn.offset = function( options ) {if ( arguments.length ) {//设置return options === undefined ?this :this.each(function( i ) {//每一个元素设置jQuery.offset.setOffset( this, options, i );});}
//获取var docElem, win,elem = this[ 0 ],box = { top: 0, left: 0 },doc = elem && elem.ownerDocument;//documentif ( !doc ) {return;}docElem = doc.documentElement;//html标签// Make sure it's not a disconnected DOM nodeif ( !jQuery.contains( docElem, elem ) ) {return box;}// getBoundingClientRect()得到一些属性值:ClientRect {top: 8, right: 58, bottom: 58, left: 8, width: 50…},是到可视区的不包含滚动区域，if ( typeof elem.getBoundingClientRect !== core_strundefined ) {box = elem.getBoundingClientRect();}win = getWindow( doc );//获取window//pageYOffset是y轴的滚动距离，clientTop边框宽度，return {top: box.top + win.pageYOffset - docElem.clientTop,left: box.left + win.pageXOffset - docElem.clientLeft};
};jQuery.offset = {
//设置offsetsetOffset: function( elem, options, i ) {var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,position = jQuery.css( elem, "position" ),//获取元素的position属性，curElem = jQuery( elem ),props = {};// Set position first, in-case top/left are set even on static elemif ( position === "static" ) {//没有定位就加一个相对定位elem.style.position = "relative";}curOffset = curElem.offset();curCSSTop = jQuery.css( elem, "top" );curCSSLeft = jQuery.css( elem, "left" );calculatePosition = ( position === "absolute" || position === "fixed" ) && ( curCSSTop + curCSSLeft ).indexOf("auto") > -1;// Need to be able to calculate position if either top or left is auto and position is either absolute or fixedif ( calculatePosition ) {curPosition = curElem.position();curTop = curPosition.top;curLeft = curPosition.left;} else {curTop = parseFloat( curCSSTop ) || 0;curLeft = parseFloat( curCSSLeft ) || 0;}if ( jQuery.isFunction( options ) ) {options = options.call( elem, i, curOffset );}if ( options.top != null ) {props.top = ( options.top - curOffset.top ) + curTop;}if ( options.left != null ) {props.left = ( options.left - curOffset.left ) + curLeft;}if ( "using" in options ) {options.using.call( elem, props );} else {curElem.css( props );}}
};jQuery.fn.extend({position: function() {//获取if ( !this[ 0 ] ) {return;}var offsetParent, offset,elem = this[ 0 ],parentOffset = { top: 0, left: 0 };// Fixed elements are offset from window (parentOffset = {top:0, left: 0}, because it is it's only offset parentif ( jQuery.css( elem, "position" ) === "fixed" ) {// We assume that getBoundingClientRect is available when computed position is fixedoffset = elem.getBoundingClientRect();} else {// 原生方法找父级offsetParent = this.offsetParent();// Get correct offsetsoffset = this.offset();if ( !jQuery.nodeName( offsetParent[ 0 ], "html" ) ) {parentOffset = offsetParent.offset();}// Add offsetParent bordersparentOffset.top += jQuery.css( offsetParent[ 0 ], "borderTopWidth", true );parentOffset.left += jQuery.css( offsetParent[ 0 ], "borderLeftWidth", true );}// 自己的top减去父级的topreturn {top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )};},offsetParent: function() {return this.map(function() {var offsetParent = this.offsetParent || docElem;while ( offsetParent && ( !jQuery.nodeName( offsetParent, "html" ) && jQuery.css( offsetParent, "position") === "static" ) ) {offsetParent = offsetParent.offsetParent;}return offsetParent || docElem;});}
});// Create scrollLeft and scrollTop methods
jQuery.each( {scrollLeft: "pageXOffset", scrollTop: "pageYOffset"}, function( method, prop ) {var top = "pageYOffset" === prop;jQuery.fn[ method ] = function( val ) {return jQuery.access( this, function( elem, method, val ) {var win = getWindow( elem );if ( val === undefined ) {return win ? win[ prop ] : elem[ method ];}if ( win ) {win.scrollTo(!top ? val : window.pageXOffset,top ? val : window.pageYOffset);} else {elem[ method ] = val;//原生的方法}}, method, val, arguments.length, null );};
});function getWindow( elem ) {return jQuery.isWindow( elem ) ? elem : elem.nodeType === 9 && elem.defaultView;
}
// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name }, function( defaultExtra, funcName ) {// margin is only for outerHeight, outerWidthjQuery.fn[ funcName ] = function( margin, value ) {var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );return jQuery.access( this, function( elem, type, value ) {var doc;//是window就得到可视区的宽高if ( jQuery.isWindow( elem ) ) {// As of 5/8/2012 this will yield incorrect results for Mobile Safari, but there// isn't a whole lot we can do. See pull request at this URL for discussion:// https://github.com/jquery/jquery/pull/764return elem.document.documentElement[ "client" + name ];}//是document就得到页面的宽高if ( elem.nodeType === 9 ) {doc = elem.documentElement;// Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],// whichever is greatestreturn Math.max(elem.body[ "scroll" + name ], doc[ "scroll" + name ],elem.body[ "offset" + name ], doc[ "offset" + name ],doc[ "client" + name ]);}return value === undefined ?jQuery.css( elem, type, extra ) ://css方式获取jQuery.style( elem, type, value, extra );//style方式获取}, type, chainable ? margin : undefined, chainable, null );};});
});
// Limit scope pollution from any deprecated API
// (function() {// The number of elements contained in the matched element set
jQuery.fn.size = function() {return this.length;
};jQuery.fn.andSelf = jQuery.fn.addBack;// })();
if ( typeof module === "object" && module && typeof module.exports === "object" ) {// Expose jQuery as module.exports in loaders that implement the Node// module pattern (including browserify). Do not create the global, since// the user will be storing it themselves locally, and globals are frowned// upon in the Node module world.module.exports = jQuery;
} else {// Register as a named AMD module, since jQuery can be concatenated with other// files that may use define, but not via a proper concatenation script that// understands anonymous AMD modules. A named AMD is safest and most robust// way to register. Lowercase jquery is used because AMD module names are// derived from file names, and jQuery is normally delivered in a lowercase// file name. Do this after creating the global so that if an AMD module wants// to call noConflict to hide this version of jQuery, it will work.if ( typeof define === "function" && define.amd ) {define( "jquery", [], function () { return jQuery; } );}
}// If there is a window object, that at least has a document property,
// define jQuery and $ identifiers
if ( typeof window === "object" && typeof window.document === "object" ) {window.jQuery = window.$ = jQuery;
}})( window );