window.event.keyCode如何在Firefox上执行此操作？

编程入门行业动态更新时间:2024-10-27 18:27:37

本文介绍了window.event.keyCode如何在Firefox上执行此操作？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！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.