拆下来可以打字,装上去有时候几秒钟会恢复,偶尔会有不停地自动打一个字vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv像这样