<body>
<script type="text/javascript">
//not IE is requiredfunction fncKeyStop(evt)
{
if(!window.event) { var keycode = evt.keyCode; var key = String.fromCharCode(keycode).toLowerCase(); if(evt.ctrlKey && key == "v") { evt.preventDefault(); evt.stopPropagation();
} }
}</script><input onkeydown="fncKeyStop(event)" onpaste="return false" oncontextmenu = "return false;" /></body>已知的问题：不能屏蔽Firefox的菜单栏上的“paste”。：（
-----以上转自CSDN.NET 孟子E章
