您也可以提供其他用户端程序码来自订控制项的功能，但这不是必要的。

You can also provide additional client code to customize the functionality of a control, but this is not required.

youdao

您也可以提供其他用户端程序码来自订控制项的功能，但这不是必要的。

You can also provide additional client code to customize the functionality of a control, but this is not required.

youdao