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- **禁止某些键盘事件**
- ```language
- 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)
- });
- ```
- **禁止右键、选择、复制**
- ```language
- ['contextmenu', 'selectstart', 'copy'].forEach(function(ev){
- document.addEventListener(ev, function(event){
- return event.returnValue = false
- })
- });
- ```
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