测试EXTJS4中的特性：config, extend, statics, mixins

  Ext.onReady(function() { alert("测试　config"); //测试 config  //构造一台智能手机 Ext.define('SmartPhone', { config: { hasTouchScreen: false,//有触摸屏 operatingSystem: 'Other',//操做系统 price: 500//价格 }, constructor: function(cfg) { this.initConfig(cfg); } }); //iPhone手机 var iPhone = new SmartPhone({ hasTouchScreen: true, operatingSystem: 'iOS' }); alert( iPhone.getOperatingSystem()); alert(iPhone.getHasTouchScreen()); //Ext.Msg.alert('iPhone.getPrice()：', iPhone.getPrice()); alert("测试　extend"); //测试　extend //构造人类 Ext.define('Person', { say: function(text) { alert(text); }//具备说的方法 }); Ext.define('Developer', {     extend: 'Person',//继承人类     say: function(text) { this.callParent(["print "+text]); }//继承了说的方法 }); var develop = new Developer(); develop.say("text"); alert("测试　static"); //测试　static //构造一台计算机 Ext.define('Computer', { statics: { factory: function(brand) { alert(brand); } }, constructor: function() { }//构造函数 }); //建立一台戴尔电脑 var dellComputer = Computer.factory('Dell'); alert("测试　mixins"); //测试　mixins //唱歌 Ext.define('CanSing', { sing: function() { alert("sing()") } }); //音乐家 Ext.define('Musician', { mixins: ['CanSing'] }); var m = new Musician(); m.sing(); });