/*** @description 日期工具类* 原作来源: | yDate.js | Copyright (c) 2013 yao.yl | email: redrainyi@126.com | Date: 2012-09-03 | * * 地址: http://www.oschina.net/code/snippet_913265_20123#comments* 改动说明: 针对yDate进行了一些个性化的修改,以及增加了一些工具函数* @author dailc  dailc* @version 2.0* @time 2016-01-14 12:57:57* 功能模块:* Date相关模块********************************* core/MobileFrame/DateUtil* 1.构造方法* 2.对象的相关功能函数-见源码和文档* Date相关模块结束******************************/
(function(exports) {"use strict";var objectPrototypeToString = Object.prototype.toString;/*** 日期匹配的正则表达式* Y:年* M:月* D:日* h:小时* m:分钟* s:秒* i:毫秒* w:星期(小写的)* W:星期(大写的)*/var SIGN_DATE_REG = /([YMDhmsiWw])(\1*)/g;/*** 默认的pattern* 'YYYY-MM-DD hh:mm:ss:iii'*/var DEFAULT_PATTERN = 'YYYY-MM-DD hh:mm:ss:iii';/*** @description 判断一个值是否是日期类型* @param {Object} value*/function isDate(value) {return objectPrototypeToString.call(value) === '[object Date]';};/*** @description 复制一个日期,如果传入的不是日期,会返回一个最新的日期* @param {Date} targetDate*/function cloneDate(targetDate, callBack) {//绝对时间,从1970.1.1开始的毫秒数var absoluteTime = (isDate(targetDate)) ? targetDate.getTime() : undefined;var mDate = new Date(absoluteTime);var year = mDate.getFullYear(), //
            month = mDate.getMonth(), //
            date = mDate.getDate(), //
            hours = mDate.getHours(), //
            minutes = mDate.getMinutes(), // seconds = mDate.getSeconds(); //
        //!! 代表将后面的转为一个布尔表达式   例如 !!a 就相当于 a||false(!!callBack) && callBack(mDate, year, month, date, hours, minutes, seconds);return mDate;};/*** @description 日期解析,将日期字符串根据特定的匹配字符串解析为日期格式* 解析失败会返回null,如果传入了奇怪的匹配字符串,会产生奇怪的时间* @param {String} dateString 日期字符串* @param {String} pattern 匹配字符串,可以手动传入,或者采取默认* 手动传入需要和日期字符串保持一致*/function parseDate(dateString, pattern) {try {//() 是为了提取匹配的字符串。表达式中有几个()就有几个相应的匹配字符串。//(\s*)表示连续空格的字符串。//[]是定义匹配的字符范围。比如 [a-zA-Z0-9] 表示相应位置的字符要匹配英文字符和数字。//[\s*]表示空格或者*号。//{}一般用来表示匹配的长度，比如 \s{3} 表示匹配三个空格，\s[1,3]表示匹配一到三个空格。//(\1)是后向引用,代表后面引用前面第一个()中的内容//根据日期格式来匹配var matchs1 = (pattern || (dateString.length === 10 ? 'YYYY-MM-DD' : (dateString.length === 19 ? 'YYYY-MM-DD hh:mm:ss' : 'YYYY-MM-DD hh:mm:ss:iii'))).match(SIGN_DATE_REG);//根据整数来匹配,将实际的时间数据提取出来var matchs2 = dateString.match(/(\d)+/g);if (matchs1.length > 0) {//第一个匹配字符串需要大于0才行//生成一个最原始的时间-1970-01-01年的var mDate = new Date(1970, 0, 1);//遍历,分别设置年月日,分秒等等for (var i = 0; i < matchs1.length; i++) {//这个分别是  年,月,日  时,分,秒等等var mTarget = parseInt(matchs2[i], 10);switch (matchs1[i].charAt(0) || '') {//这个matchs1[i]有可能是  YYYY  所以只去第一个字符case 'Y':mDate.setFullYear(mTarget);break;case 'M':mDate.setMonth(mTarget - 1);break;case 'D':mDate.setDate(mTarget);break;case 'h':mDate.setHours(mTarget);break;case 'm':mDate.setMinutes(mTarget);break;case 's':mDate.setSeconds(mTarget);break;case 'i':mDate.setMilliseconds(mTarget);break;default://默认不操作
                    }}return mDate;}} catch (e) {}return null;};/*** @description 将字符串多余的长度补齐0* @param {String} s* @param {Number} len*/function paddingFillWith0(s, len) {var len = len - (s + "").length;for (var i = 0; i < len; i++) {s = "0" + s;}return s;}/*** @description 格式化时间,返回格式化后的字符串* 如果格式不合要求,返回null* @param {Date} value 目标时间* @param {String} pattern 匹配字符串*/function formatDateToString(value, pattern) {if (!isDate(value)) {return '';}try {//默认为输出所有的pattern = pattern || DEFAULT_PATTERN;return pattern.replace(SIGN_DATE_REG, function($0) {//如果传入一个yyyy-MM-dd 的表达式//实际上这个函数会分别回调多次 没符合一次匹配就回调一次//$0:yyyy  $0:MM $0:dd  依次类推//console.log('$0:'+$0);switch ($0.charAt(0)) {case 'Y':return paddingFillWith0(value.getFullYear(), $0.length);case 'M':return paddingFillWith0(value.getMonth() + 1, $0.length);case 'D':return paddingFillWith0(value.getDate(), $0.length);case 'h':return paddingFillWith0(value.getHours(), $0.length);case 'm':return paddingFillWith0(value.getMinutes(), $0.length);case 's':return paddingFillWith0(value.getSeconds(), $0.length);case 'i':return paddingFillWith0(value.getMilliseconds(), $0.length);case 'w':return value.getDay();case 'W'://自动将星期转为了大写var week = ['日', '一', '二', '三', '四', '五', '六'];return paddingFillWith0(week[value.getDay()], $0.length);default:return '';}});} catch (e) {console.log('error:' + e);return '';}};/*** @description 得到实际日期最大值* @param {Date} date*/function getActualMaximum(date) {var vDate = new Date(date.getTime());vDate.setMonth(vDate.getMonth() + 1);vDate.setDate(0);return vDate.getDate();}/*** @description 定义一个自定义日期类的构造方法,* 里面封装日期的常用操作,不通过自带的日期来操作* @constructor 这是一个构造方法*/function MyDate() {var p0 = arguments[0];var p1 = arguments[1];//isFinite 用于判断是否是无穷大//如果 number 是有限数字（或可转换为有限数字），那么返回 true//如果 number 是 NaN（非数字），或者是正、负无穷大的数，则返回 falseif (typeof p0 === 'number' && isFinite(value)) {this.myDate = new Date(p0); //millis} else if (isDate(p0)) {this.myDate = new Date(p0.getTime());} else if (typeof p0 === 'string') {if (typeof p1 !== 'string' && typeof p1 !== 'undefined') {p1 = undefined;}this.myDate = parseDate(p0, p1);} else if (arguments.length == 0) {this.myDate = new Date();} else {throw 'MyDate Constructor Error!';}};/*** @description 给一个日期设置年份* @param {Number} finalYear* @param {Date} mDate* @param {MyDate} self*/function setYearG(finalYear, mDate, self) {mDate.setFullYear(finalYear);}/*** @description 给一个日期设置月份* 之所以要单独将设置月份(年,日,时...)的函数抽取出来,是因为* 在日期时间 加,减操作时,会涉及到一个进位问题: 比如,1月31日的下一天应该是2月1日...* 所以单独封装成函数便于调用* 之所以没有 直接调用plusMonth,plusYear...* 是因为这个操作中间有回调,多个回调嵌套后,无法同步返回最准确的数据* (可以自行测试)* @param {Number} finalYear* @param {Date} mDate* @param {MyDate} self*/function setMonthG(finalMon, mDate, self) {//month 为 0-11if (finalMon > 11) {finalMon = finalMon - 12;setYearG(mDate.getFullYear() + 1, mDate, self);} else if (finalMon < 0) {finalMon += 12;setYearG(mDate.getFullYear() - 1, mDate, self);}/** 关于月份顺延的bug发现如下规律：只要setMonth()的参数为小于31天的月份时就会变为下一个月。原因是：因为当前月份是31天，而设置的月份小于31天，就会把日期顺延。在setMonth的说明是这样的：dateObj.setMonth(numMonth[, dateVal])dateVal可选项。一个代表日期的数值。如果没有提供此参数，那么将使用通过调用 getDate 方法而得到的数值。所以，从对dataVal参数的说明可以看出，在设置月份的同时，使用getDate获取日期，并使用得到的日期值设置了日期。于是就会发生月份顺延的情况。解决方法：1、设置月份时，将日期设为1，记setMonth(month, 1)，当然可以在setMonth之前先调用setDate()设置日期；2、也可以在初始化Date对象时，就指定一个日期，也就是使用：dateObj = new Date(year, month, date[, hours[, minutes[, seconds[,ms]]]]) 的形式。3、也可以使用setFullYear()同时设置年、月、日，即setFullYear(numYear[, numMonth[, numDate]])。 *bug简单说明:* 如果当前是10月31日,然后设置月份为11,由于11月没有31天,所以月份会顺延* 自动变为12月,所以解决方法是要在设置月份前先把日期设置下,然后之后再继续设置日期* (因为日期肯定是需要改变的)* * * * */mDate.setMonth(finalMon, 1);}/*** @description 给一个日期设置日期* @param {Number} finalYear* @param {Date} mDate* @param {MyDate} self*/function setDateG(finalDay, mDate, self) {var month = mDate.getMonth();var monthDays = self.getMonthDays(month + 1);if (finalDay > monthDays) {finalDay -= monthDays;setMonthG(mDate.getMonth() + 1, mDate, self);} else if (finalDay <= 0) {var lastMonthDay = month > 0 ? self.getMonthDays((month + 1 - 1)) : self.getMonthDays(12);finalDay += lastMonthDay;setMonthG(mDate.getMonth() - 1, mDate, self);}mDate.setDate(finalDay);}/*** @description 给一个日期设置小时* @param {Number} finalYear* @param {Date} mDate* @param {MyDate} self*/function setHourG(finalHour, mDate, self) {if (finalHour >= 24) {finalHour -= 24;setDateG(mDate.getDate() + 1, mDate, self);} else if (finalHour < 0) {finalHour += 24;setDateG(mDate.getDate() - 1, mDate, self);}mDate.setHours(finalHour);}/*** @description 给一个日期设置分钟* @param {Number} finalYear* @param {Date} mDate* @param {MyDate} self*/function setMinG(finalMin, mDate, self) {if (finalMin >= 60) {finalMin -= 60;setHourG(mDate.getHours() + 1, mDate, self);} else if (finalHour < 0) {finalMin += 60;setHourG(mDate.getHours() - 1, mDate, self);}mDate.setMinutes(finalMin);}/*** @description 给一个日期设置秒* @param {Number} finalYear* @param {Date} mDate* @param {MyDate} self*/function setSecG(finalSec, mDate, self) {if (finalSec >= 60) {finalSec -= 60;setMinG(mDate.getMinutes() + 1, mDate, self);} else if (finalSec < 0) {finalSec += 60;setMinG(mDate.getMinutes() - 1, mDate, self);}mDate.setSeconds(finalSec);}/*** @description 通过扩充原型添加方法*/MyDate.prototype = {/*** @description 得到一个月有多少天* @param {Number} month 对应的月份*/getMonthDays: function(month) {switch (month) {case 1:case 3:case 5:case 7:case 8:case 10:case 12:return 31;break;case 4:case 6:case 9:case 11:return 30;break;case 2:if (this.isLeapYear()) {return 29;} else {return 28;}break;default:return 0;break;}},/*** @description 年份相加,返回一个新的日期* @param {Object} value*/plusYear: function(value) {var self = this;return new MyDate(cloneDate(this.myDate, function(mDate, year, month, date, hours, minutes, seconds) {setYearG(year + value, mDate, self);}));},plusMonth: function(value) {var self = this;return new MyDate(cloneDate(this.myDate, function(mDate, year, month, date, hours, minutes, seconds) {setMonthG(month + value, mDate, self);}));},plusDate: function(value) {var self = this;return new MyDate(cloneDate(this.myDate, function(mDate, year, month, date, hours, minutes, seconds) {var finalDay = date + value;setDateG(finalDay, mDate, self);}));},plusHours: function(value) {var self = this;return new MyDate(cloneDate(this.myDate, function(mDate, year, month, date, hours, minutes, seconds) {var finalHour = hours + value;setHourG(finalHour, mDate, self);}));},plusMinutes: function(value) {var self = this;return new MyDate(cloneDate(this.myDate, function(mDate, year, month, date, hours, minutes, seconds) {var finalMin = minutes + value;setMinG(finalMin, mDate, self);}));},plusSeconds: function(value) {var self = this;return new MyDate(cloneDate(this.myDate, function(mDate, year, month, date, hours, minutes, seconds) {var finalSec = seconds + value;setSecG(finalSec, mDate, self);}));},minusYear: function(value) {return this.plusYear(-value);},minusMonth: function(value) {return this.plusMonth(-value);},minusDate: function(value) {return this.plusDate(-value);},minusHours: function(value) {return this.plusHours(-value);},minusMinutes: function(value) {return this.plusMinutes(-value);},minusSeconds: function(value) {return this.plusSeconds(-value);},setYear: function(value) {this.myDate.setFullYear(value);},setMonth: function(value) {this.myDate.setMonth(value - 1);},setDate: function(value) {this.myDate.setDate(value);},setHours: function(value) {this.myDate.setHours(value);},setMinutes: function(value) {this.myDate.setMinutes(value);},setSeconds: function(value) {this.myDate.setSeconds(value);},setMilliseconds: function(value) {this.myDate.setMilliseconds(value);},getYear: function() {return this.myDate.getFullYear();},getMonth: function() {//比普通月份小1return this.myDate.getMonth();},getDate: function() {return this.myDate.getDate();},getHours: function() {return this.myDate.getHours();},getMinutes: function() {return this.myDate.getMinutes();},getSeconds: function() {return this.myDate.getSeconds();},getMilliseconds: function() {return this.myDate.getMilliseconds();},/*** @description 得到从1970至今多少年*/getAbsoluteYear: function() {return this.myDate.getFullYear() - 1970;},getAbsoluteMonth: function() {return this.getAbsoluteYear() * 12 + this.myDate.getMonth();},/*** @description 获得绝对日期* 这里采取的方法为 得到从1970至今的毫秒数,然后转为天*/getAbsoluteDate: function() {var absoluteMillons = this.getAbsoluteMillonsTime();//毫秒-秒-分-时-天return parseInt(absoluteMillons / 1000 / 60 / 60 / 24, 10);},getAbsoluteHours: function() {return this.getAbsoluteDate() * 24 + this.myDate.getHours();},getAbsoluteMinutes: function() {return this.getAbsoluteHours() * 60 + this.myDate.getMinutes();},getAbsoluteSeconds: function() {return this.getAbsoluteMinutes() * 60 + this.myDate.getSeconds();},/*** @description 得到从1970年开始到现在的毫秒数* 单位是毫秒*/getAbsoluteMillonsTime: function() {return this.myDate.getTime();},getDayOfWeek: function(pattern) {//0（周日） 到 6（周六//var week = ['日','一','二','三','四','五','六'];return this.myDate.getDay();},isLeapYear: function() {return (0 == this.myDate.getYear() % 4 && ((this.myDate.getYear() % 100 != 0) || (this.myDate.getYear() % 400 == 0)));},toDate: function() {return cloneDate(this.myDate);},clone: function() {return new MyDate(cloneDate(this.myDate));},/*** @description 得到一个日期的最小时间* @param {String}method = [YYYY|MM|DD|hh|mm|ss] field 分别代表年,月,日,时,分,秒的抉择*/getBegin: function(field) {return new MyDate(cloneDate(this.myDate, function(mDate, year, month, date, hours, minutes, seconds) {switch (field) {case 'YYYY': //yearmDate.setMonth(0);mDate.setDate(1);mDate.setHours(0);mDate.setMinutes(0);mDate.setSeconds(0);mDate.setMilliseconds(0);break;case 'MM': //monthmDate.setDate(1);mDate.setHours(0);mDate.setMinutes(0);mDate.setSeconds(0);mDate.setMilliseconds(0);case 'DD': //datemDate.setHours(0);mDate.setMinutes(0);mDate.setSeconds(0);mDate.setMilliseconds(0);break;case 'hh': //hourmDate.setMinutes(0);mDate.setSeconds(0);mDate.setMilliseconds(0);break;case 'mm': //minutemDate.setSeconds(0);mDate.setMilliseconds(0);break;case 'ss': //secondsmDate.setMilliseconds(0);break;default://Ignore
                }}));},/*** @description 得到一个日期的最大时间* @param {String}method = [YYYY|MM|DD|hh|mm|ss] field 分别代表年,月,日,时,分,秒的抉择*/getEnd: function(field) {return new MyDate(cloneDate(this.myDate, function(mDate, year, month, date, hours, minutes, seconds) {switch (field) {case 'YYYY': //yearmDate.setMonth(11);mDate.setDate(31);mDate.setHours(23);mDate.setMinutes(59);mDate.setSeconds(59);mDate.setMilliseconds(999);break;case 'MM': //month
                        mDate.setDate(getActualMaximum(mDate));mDate.setHours(23);mDate.setMinutes(59);mDate.setSeconds(59);mDate.setMilliseconds(999);case 'DD': //datemDate.setHours(23);mDate.setMinutes(59);mDate.setSeconds(59);mDate.setMilliseconds(999);break;case 'hh': //hourmDate.setMinutes(59);mDate.setSeconds(59);mDate.setMilliseconds(999);break;case 'mm': //minutemDate.setSeconds(59);mDate.setMilliseconds(999);break;case 'ss': //secondsmDate.setMilliseconds(999);break;default://Ignore
                }}));},/*** @description 和另一个日期比较,另一个日期必须为MyDate型* @param {Date} targetDate 目标日期,MyDate型* @param {String} method = [YYYY|MM|DD|hh|mm|ss|iii] pettern 选择字符串,目前支持 yyyy,MM,dd,HH,mm,ss以及iii* 分别代表比较到某一个层次,默认为比较到毫秒* @return {Number} 返回结果* -1:比较字符对象不合法* 0:两个日期相等* 1:本日期大于目标日期* 2:本日期小于目标日期*/compare: function(targetDate, pattern) {//如果不是时间类型,而且不是MyDate类型if (!isDate(targetDate) && !(targetDate instanceof MyDate)) {return -1;}//默认为毫秒pattern = pattern || 'iii';if (pattern === 'YYYY') {if (this.getAbsoluteYear() == targetDate.getAbsoluteYear()) {return 0;} else if (this.getAbsoluteYear() > targetDate.getAbsoluteYear()) {return 1;} else {return 2;}} else if (pattern === 'MM') {if (this.getAbsoluteMonth() == targetDate.getAbsoluteMonth()) {return 0;} else if (this.getAbsoluteMonth() > targetDate.getAbsoluteMonth()) {return 1;} else {return 2;}} else if (pattern === 'DD') {if (this.getAbsoluteDate() == targetDate.getAbsoluteDate()) {return 0;} else if (this.getAbsoluteDate() > targetDate.getAbsoluteDate()) {return 1;} else {return 2;}} else if (pattern === 'hh') {if (this.getAbsoluteHours() == targetDate.getAbsoluteHours()) {return 0;} else if (this.getAbsoluteHours() > targetDate.getAbsoluteHours()) {return 1;} else {return 2;}} else if (pattern === 'mm') {if (this.getAbsoluteMinutes() == targetDate.getAbsoluteMinutes()) {return 0;} else if (this.getAbsoluteMinutes() > targetDate.getAbsoluteMinutes()) {return 1;} else {return 2;}} else if (pattern === 'ss') {if (this.getAbsoluteSeconds() == targetDate.getAbsoluteSeconds()) {return 0;} else if (this.getAbsoluteSeconds() > targetDate.getAbsoluteSeconds()) {return 1;} else {return 2;}} else {if (this.getAbsoluteMillonsTime() == targetDate.getAbsoluteMillonsTime()) {return 0;} else if (this.getAbsoluteMillonsTime() > targetDate.getAbsoluteMillonsTime()) {return 1;} else {return 2;}}},isMoreThan: function(targetDate, pattern) {return this.compare(targetDate, pattern) == 1 ? true : false;},isLessThan: function(targetDate, pattern) {return this.compare(targetDate, pattern) == 2 ? true : false;},isEqual: function(targetDate, pattern) {return this.compare(targetDate, pattern) == 0 ? true : false;},toString: function(pattern) {return formatDateToString(this.myDate, pattern);}};exports.MyDate = MyDate;
})(window.DateUtil={});

var MyDate = DateUtil.MyDate;
var date1 = new MyDate(“2016-01-01 01:02:03:000”);
date1.getYear();
date1.setYear(2014);