Add the following package statement and import statements to the file.

将下面的软件包语句和导入的语句添加到该文件中。

youdao

The package statement enables packaging of related classes for easy deployment and to avoid naming collisions.

包语句允许打包相关的类以实现方便的部署和避免出现命名冲突。

youdao

The package statement enables packaging of related classes for easy deployment and to avoid naming collisions.

包语句允许打包相关的类以实现方便的部署和避免出现命名冲突。

youdao