input focus

• 输入焦点

input focus的用法和样例：

例句

1. Sets input focus to this control.
   为此控件设置输入焦点。
2. When the user releases the mouse button, input focus is severed, and nothing happens.
   但当释放鼠标按键后，输入焦点切断了，任何事也没发生。