窗口一般在最前（主窗口），这个窗口内视图一般也会聚焦。

One window is normally in front (main window) and one view within this window is normally the focus.

youdao

窗口一般在最前（主窗口），这个窗口内视图一般也会聚焦。

One window is normally in front (main window) and one view within this window is normally the focus.

youdao