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C#——get和set 方法_perfect-顾(coder)的博客-CSDN博客_c# set方法
virtual override 重写
abstract 抽象方法 必须写在抽象类中 并且抽象方法只能在子类中实现
接口可以实现多继承
interface 接口名 接口名称一般以 I开头命名
定义好接口之后 必须在子类中进行实现
C#中 什么是接口Interface,以及如何简单使用_叶子小叶子的博客-CSDN博客_c# interface