document.addEventListener('keydown', function(event){
return !(
112 == event.keyCode || //F1
123 == event.keyCode || //F12
event.ctrlKey && 82 == event.keyCode || //ctrl + R
event.ctrlKey && 78 == event.keyCode || //ctrl + N
event.shiftKey && 121 == event.keyCode || //shift + F10
event.altKey && 115 == event.keyCode || //alt + F4
"A" == event.srcElement.tagName && event.shiftKey //shift + 点击a标签
) || (event.returnValue = false)}
);
禁止某些键盘事件
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转载自www.cnblogs.com/EternalZH/p/12214292.html
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