复制代码 代码如下:

<script type="text/javascript">

window.onbeforeunload = onbeforeunload_handler;

window.onunload = onunload_handler;

function onbeforeunload_handler(){

var warning="确认退出?";

return warning; //可以换成alert等具体操作

}

function onunload_handler(){

var warning="谢谢光临";

alert(warning); //关闭后执行

}

</script>