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（Factory Method）工厂方法模式的Java实现

工厂方法模式（Factory Method）：定义一个用于创建对象的接口IFactory，在具体的ConcreteFactory子类中根据传进的参数即具体子类ConcreteProduct决定实例化哪一个IProduct产品，该模式使得一个类（即IProduct）的实例化延迟到其子类（即C...

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