August 2021
Intermediate to advanced
450 pages
4h 46m
Chinese
Content preview from 面向对象的思考过程（原书第5版）
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1.8.3 接口/实现范式的一个真实示例
图1.12使用了真实的对象演示了接口/实现范式，这里没有使用代码。烤面包机需要电。为了得到电，烤面包机的插头必须插到电源插座，电源插座就是接口。所有需要获取电力的烤面包机需要实现一个插头，要与电源插座规格适配。这是烤面包机和电力公司（事实上是电力工业）之间的接口。燃煤发电厂会关心实际的实现，而烤面包机则无须担心。事实上，对于所有面包机而言，电力实现可能是核电站或本地发电机。基于这样的模型，一个装置只要满足接口规格，就可以获取电力，如图1.12所示。
图1.12 发电厂示例
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