<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Untitled Document</title> <!-- 引入的核心js公共文件 --> <script type=text/javascript charset=utf-8 src=../commons/../commons/CommonUtil.js></script> <script type=text/javascript charset=utf-8> //分发到不同的4S店（类似于java的抽象类） function CarShop(){}; CarShop.prototype = { constructor : CarShop , sellCar:function(type){ // 销售人员... //var car = CarFactory.createCar(type); // 保险、相关的售后服务 //return car ; this.abstractSellCar(type); } , abstractSellCar: function(){ throw new Error('this method is abstract...'); } }; // Benz 4s 店 function BenzCarShop(){}; BH.extend(BenzCarShop,CarShop); BenzCarShop.prototype = { constructor:BenzCarShop , sellCar:function(type){ var car ; var types = ['Benz']; //输入参数校验 for(t in types){ // 如果我的商店里有你想要汽车型号 if(types[t] === type){ car = CarFactory.createCar(type); } else { alert('没有你要的型号!'); } } return car ; } }; // 宝马 4s 店 function BmwCarShop(){}; BH.extend(BmwCarShop,CarShop); BmwCarShop.prototype = { constructor:BmwCarShop , sellCar:function(type){ var car ; var types = ['Bmw']; //输入参数校验 for(t in types){ // 如果我的商店里有你想要汽车型号 if(types[t] === type){ car = CarFactory.createCar(type); } else { alert('没有你要的型号!'); } } return car ; } }; //生产车的工厂 目的就是为了生产车 //单体模式 动态工厂模式 var CarFactory = { createCar:function(type){ // var car = new Benz();，不需要做switch判断了 var car = eval('new '+type+'()'); //检验接口实现 BH.Interface.ensureImplements(car ,CarInterface); return car ; } }; // 接口对象的实例 var CarInterface = new BH.Interface('CarInterface' ,['start','run']); // SuperClass implements CarInterface function BaseCar(){}; BaseCar.prototype = { constructor:BaseCar , start:function(){ alert(this.constructor.name + ' ..start'); }, run:function(){ alert(this.constructor.name + ' ..run'); } }; function Benz(){}; BH.extend(Benz,BaseCar); Benz.prototype.driveBenz = function(){alert('Benz..drive')}; //Benz.prototype.run = function(){alert('Benz..run')}; function Bmw(){}; BH.extend(Bmw,BaseCar); Bmw.prototype.driveBmw = function(){alert('Bmw..drive')}; //Bmw.prototype.run = function(){alert('Bmw..run')}; function Audi(){}; BH.extend(Audi,BaseCar); Audi.prototype.driveAudi = function(){alert('Audi..drive')}; //Audi.prototype.run = function(){alert('Audi..run')}; var shop = new CarShop(); var car = shop.sellCar('Benz'); car.start(); car.run(); car.driveBenz(); var car2 = shop.sellCar('Bmw'); car2.start(); car2.run(); car2.driveBmw(); var shop1 = new BenzCarShop(); var car1 = shop1.sellCar('Benz'); car1.run(); var shop2 = new BmwCarShop(); var car2 = shop2.sellCar('Bmw'); car2.run(); </script> </head> <body> </body> </html>
本文转自农夫山泉别墅博客园博客，原文链接：http://www.cnblogs.com/yaowen/p/6882877.html，如需转载请自行联系原作者
