没有抽象方法的抽象类 [英] Abstract class with no abstract methods

问题描述

参考C＃，可以定义不包含抽象方法的抽象类，然后将类定义为ABSTRACT有什么用？

With refrence to C#, it is possible to define abstract class containing no abstract methods, then whats the use of defining class as ABSTRACT?

推荐答案

基本上，我的经验法则是，在必须继承要实例化的类时，应始终定义抽象类。因为抽象类本身不能。

Basically, I use as a rule of thumb that you should always define classes abstract when they MUST be inherited to be instantiated. Because abstract classes themselves cannot.

例如。假设您有一个建筑类，它是抽象的。然后必须通过派生类（例如，银行或房屋）来实例化它。 Building类中没有抽象方法这一事实与它是否抽象无关。

For example. Say you have a Building class, which is abstract. It must then be instantiated through a derived class, for example, a Bank or House. The fact that there are no abstract methods in the Building class has nothing to do with it being abstract or not.

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