一、一个叫声接口和几只鸭子
- 从一个叫声接口开始。
- {《HeadFirst设计模式》Delphi代码之模式小结 }
- { 一个叫声接口 }
- { 编译工具:Delphi2010 for win32 }
- { E-Mail :guzh-0417@163.com }
- unit uQuackable;
- interface
- type
- IQuackable = interface(IInterface)
- procedure Quack;
- end;
- implementation
- end.
2、几只鸭子实现了该叫声接口。
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3、叫声接口为鸭鸣器提供服务。叫声接口与鸭鸣器的关系比与它的实现类更密切。
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4、客户端。
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5、运行结果: