Interfaces and inner classes provide more sophisticated ways to organize and control the objects in your system.

接口和内部类提供了更加完善的方式来在系统中组织和控制对象。

youdao

Interfaces and inner classes provide more sophisticated ways to organize and control the objects in your system.

接口和内部类提供了更加完善的方式来在系统中组织和控制对象。

youdao