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问题描述
我正在使用此代码检查keydown并在键关闭时显示字符串'Pressed'。
I'm using this code to check for keydown and display the string 'Pressed' while a key is down.
<body onKeyDown="doKey(window.event.keyCode)" onKeyUp="doKey2(window.event.keyCode)"> <script> function doKey($key) { document.getElementById('keydown').innerHTML='Pressed'; } function doKey2($key) { document.getElementById('keydown').innerHTML=''; } </script> <div id="keydown"></div>问题在于,由于某些原因,它只适用于Chrome。我认为'window.event.keyCode'不会返回任何内容。我如何让它至少在Firefox中运行?谢谢
The problem is that for some reason it's only working on Chrome. I think the 'window.event.keyCode' doesn't return anything. How do I make it work at least in Firefox too? Thanks
推荐答案<html> <body onKeyDown="doKey(event)" onKeyUp="doKey2(event)"> <script> function doKey(e) { evt = e || window.event; // compliant with ie6 document.getElementById('keydown').innerHTML = evt.keyCode+' Pressed'; } function doKey2(e) { document.getElementById('keydown').innerHTML=''; } </script> <div id="keydown"></div> </body> </html>
如果我们传递事件作为参数,大多数现代浏览器将运作良好。我已经测试过Chrome 12,Firefox 4,IE 7/8/9。
If we passed event as parameter, most modern browsers will work well. I have tested with Chrome 12, Firefox 4, IE 7/8/9.
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window.event.keyCode如何在Firefox上执行此操作?
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