That can be used to access the cancel key handler.
可用于访问取消按键处理程序的。
That can be used to access the reverse cancel key handler.
可用于访问反向取消按键处理程序的。
The Key itself is cancelled by invoking its cancel method.
通过调用Key的cancel方法将Key本身取消。
The Key itself is cancelled by invoking its cancel method.
通过调用Key的cancel方法将Key本身取消。
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