Other core events include ctrlaltdel, which indicates that you pressed Ctrl-Alt-Delete, or kbdrequest, which is used to indicate that you pressed the Alt-Up arrow key combination.

其他核心事件包括ctrlaltdel，它说明您按下了ctrl - alt - Delete，或kbdrequest，它用来说明您按下了alt - Up(向上箭头)键组合。

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