其他类

• An unsealed class allows other classes to inherit from it
  未密封的类其他类可以从未密封类继承。
• Classes can inherit from another class
  类可以从其他类中继承。
• There are many other classes that might be useful to you , such as
  还有许多其他类可能对您有用，例如
• Names accepted and used by this class and other classes in the
  命名空间中其他类所接受和使用的预定义
• Class , as well as any other classes that required authentication
  类的众多方法以及需要认证的其他类中。
• When you seal a class , other classes cannot inherit from it
  如果密封了某个类，则其他类不能从该类继承。
• Class . other classes that derive from
  派生的其他类包括
• Or to instances of other classes
  或其他类的实例时。
• Indicates that a class is intended only to be a base class of other classes
  指示某个类只能是其他类的基类。
• Describes how to define classes that serve as the basis for other classes
  描述如何定义作为其他类的基础的类。