給模型添加ORM，與持久化記錄

var Model = {    inherited:function () {    },    created:function () {    },    prototype:{        init:function () {        }    },    //給類添加屬性    extend:function (obj) {        var extended = obj.extended;        for (var i in obj) {            this[i] = obj[i];        }        if (extended) extended(klass);    },    //給實列添加屬性    include:function (obj) {        var included = obj.included;        for (var i in  obj) {            this.prototype[i] = obj[i];        }        //觸發回調        if (included) included(klass);    },    create:function () {        //子類 返回一個新對象，繼承自model對象，建立新模型        var object = Object.create(this);        //指向父類        object.parent = this;        //子類原型方法        object.prototype = object.fn = Object.create(this.prototype);        object.created();        this.inherited(object);        return object;    },    init:function () {        //返回一個新對喜愛那個，繼承自model.prototype -> model對象的一個執行個體        var instance = Object.create(this.prototype);        instance.parent = this;        instance.init.apply(instance, arguments);        return instance;    }}//儲存資來源物件Model.records = {};//持久化記錄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];    }})//繼承的父類model的一個建構函式var Asset = Model.create();//執行個體對象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)