简单获取键盘的KeyCode_javascript技巧

<script> <BR> ns4 = (document.layers) ? true : false; <BR> ie4 = (document.all) ? true : false; <BR>function keyDown(e){ <BR> if(ns4){ <BR> var nkey=e.which; <BR> var iekey='现在是ns浏览器'; <BR> var realkey=String.fromCharCode(e.which); <BR>} <BR> if(ie4){ <BR> var iekey=event.keyCode; <BR> var nkey='现在是ie浏览器'; <BR> var realkey=String.fromCharCode(event.keyCode); <BR> if(event.keyCode==32){realkey='\' 空格\''} <BR> if(event.keyCode==13){realkey='\' 回车\''} <BR> if(event.keyCode==27){realkey='\' Esc\''} <BR> if(event.keyCode==16){realkey='\' Shift\''} <BR> if(event.keyCode==17){realkey='\' Ctrl\''} <BR> if(event.keyCode==18){realkey='\' Alt\''} <BR>} <BR> alert('ns浏览器中键值:'+nkey+'\n'+'ie浏览器中键值:'+iekey+'\n'+'实际键为'+realkey); <BR>} <BR>document.onkeydown = keyDown; <BR>if(ns4){ <BR>document.captureEvents(Event.KEYDOWN);} <BR></script>


//Javascript Document

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请按任意一个键。。。。