Annex a is the realization of interface code, the other one is the application example.

附件中一个是接口的实现代码，另外一个是应用实例。

youdao

Annex a is the realization of interface code, the other one is the application example.

附件中一个是接口的实现代码，另外一个是应用实例。

youdao