Interfaces are not part of the class hierarchy, although they work in combination with classes.

接口不是类的层次结构的一部分，虽然他们结合班工作。

youdao

Interfaces are not part of the class hierarchy, although they work in combination with classes.

接口不是类的层次结构的一部分，虽然他们结合班工作。

youdao