js简单工厂模式用法实例

本文实例讲述了js简单工厂模式用法。分享给大家供大家参考。具体实现方法如下：

<！DOCTYPE html><html><head><title>简单工厂模式</title></head><body><script>//简单工厂模式var BicycleShop = function（）{};BicycleShop.prototype ={sellBicycle : function（model）{var bicycle = null;switch（model）{case "The Speedster":bicycle = new Speedster（）;break;case "The lowride":bicycle = new Lowride（）;break;case "The Comfort Cruise":bicycle = new ComfortCruise（）;break;};Interface.ensureImplements（bicycle,Bicycle）;bicycle.assemble（）;bicycle.wash（）;return bicycle;}};var AcmeBicycleShop = function（）{};extent（AcmeBicycleShop, BicycleShop）;AcmeBicycleShop.prototype.createBicycle = function（model）{var bicycle = null;switch（model）{case "The speedster":bicycle = new AcmeSpeedster（）;break;case "The Lowrider":bicycle = new AcmeLowrider（）;break;case "The Flatlander":bicycle = new AcmeFlatlander（）;break;case "The Comfort Cruiser":default :bicycle = new AcmeComfortCruiser（）;};Interface.ensureImplements（bicycle,Bicycle）;return bicycle;};//工厂模式适用与一个 fn 根据参数不同，创建不同的对象</script></body></html>

希望本文所述对大家的javascript程序设计有所帮助。