<script language="javascript" type="text/javascript">
var g_blnCheckUnload = true;
function RunOnBeforeUnload()
{
if(g_blnCheckUnload)
{
window.event.returnValue = 'You will lose any unsaved content';
}
}
onbeforeunload=RunOnBeforeUnload;
</script>
</head>
<body onbeforeunload="RunOnBeforeUnload()">
</body>
浏览器窗口关闭前提示
最新推荐文章于 2021-03-18 02:15:47 发布