<html>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<head>
<script language="javascript">
var ie =navigator.appName=="Microsoft Internet Explorer"?true:false;
function keyDown(e)
{
if(!ie)
{
var nkey=e.which;
var iekey='现在是ns浏览器';
var realkey=String.fromCharCode(e.which);
}
if(ie)
{
var iekey=event.keyCode;
var nkey='现在是ie浏览器';
var realkey=String.fromCharCode(event.keyCode);
if(event.keyCode==32){realkey='' 空格''}
if(event.keyCode==13){realkey='' 回车''}
if(event.keyCode==27){realkey='' Esc''}
if(event.keyCode==16){realkey='' Shift''}
if(event.keyCode==17){realkey='' Ctrl''}
if(event.keyCode==18){realkey='' Alt''}
}
alert('ns浏览器中键值:'+nkey+'n'+'ie浏览器中键值:'+iekey+'n'+'实际键为'+realkey);
}
document.onkeydown = keyDown;
</script>
</head>
<body>
//Javascript Document.
<hr>
<center>
<h3>请按任意一个键。。。。</h3>
</center>
</body>
</html>
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