我想添加功能来更新用户设备数据库文件后，应用程序是安装在它。

I want to add functionality to update this database file on the users device after the app is installed on it.

youdao

我想添加功能来更新用户设备数据库文件后，应用程序是安装在它。

I want to add functionality to update this database file on the users device after the app is installed on it.

youdao