<!DOCTYPE HTML>
<html lang="en-US">
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
测试demo
</body>
<script type="text/javascript">
document.onselectstart=new Function("event.returnValue=false");//禁止选中（无法复制）
//document.oncontextmenu=new Function("event.returnValue=false");//取消鼠标右键
function click(e){
if (document.all){
if (event.button==2||event.button==3) { alert("欢迎光临！");
oncontextmenu='return false';
}
}
if (document.layers){
if (e.which == 3) {
oncontextmenu='return false';
}
}
}
if(document.layers){
document.captureEvents(Event.MOUSEDOWN);
}
document.onmousedown=click;
document.oncontextmenu = new Function("return false;")
document.onkeydown =document.onkeyup = document.onkeypress=function(){
if(window.event.keyCode == 123){
window.event.returnValue=false;
return(false);
}
}
</script>
</html>