var Model = {inherited:function () {},created:function () {},prototype:{init:function () {}},//给类添加属性extend:function (obj) {var extended = obj.extended;for (var i in obj) {this[i] = obj[i];}if (extended) extended(klass);},//给实列添加属性include:function (obj) {var included = obj.included;for (var i in  obj) {this.prototype[i] = obj[i];}//触发回调if (included) included(klass);},create:function () {//子类 返回一个新对象，继承自model对象，创建新模型var object = Object.create(this);//指向父类object.parent = this;//子类原型方法object.prototype = object.fn = Object.create(this.prototype);object.created();this.inherited(object);return object;},init:function () {//返回一个新对喜爱那个，继承自model.prototype -> model对象的一个实例var instance = Object.create(this.prototype);instance.parent = this;instance.init.apply(instance, arguments);return instance;}}//保存资源对象
Model.records = {};//持久化记录
Model.include({newRecord:true,create:function () {this.newRecord = false;this.parent.records[this.id] = this;},destroy:function () {delete this.parent.records[this.id];},update:function () {this.parent.records[this.id] = this;},save:function () {this.newRecord ? this.create() : this.update();},find:function (id) {return this.records[id];}})//继承的父类model的一个构造函数
var Asset = Model.create();//实例对象
var asset1 = Asset.init();asset1.name = "Aaron-1";
asset1.id = 1;
asset1.save();var asset2 = Asset.init();asset2.name = "Aaron-2";
asset2.id = 2;
asset2.save();console.log(asset1
)