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interface-apply's Introduction

接口的妙用

不同类实现同一个接口，并对接口中的方法各自进行不同地重写

  • 定义同一个接口A
  • 根据需要定义多个不同的类，在多个类中都实现这一接口
  • 在实现接口的上述类中，分别重写接口中的成员方法
  • 不同类的实例，调用成员方法时，传入不同实例对象即可（ ts.sortedMed(arr, new Cmp1())，传入new Cmp1()或者new Cmp2()）

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