1.需要进程用户有可执行权限。2.放在你的web项目文件夹，可以新建立个目录。对了，把你的apache的httpd 或 iis 加入防火墙例外 ，文件是php后缀哦 。
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<title>computer-manager</title>
</head>
<body>
<p>
<?php
if($_POST){
$shutdown=array(
'shutdown'=>'shutdown -s -t 0',
'restart'=>'shutdown -r',
'logout'=>'shutdown -l',
);
$cmdk=$_POST['cmd'];
echo$cmd=$shutdown[$cmdk];
system($cmd);// 执行操作
}
?>
</p>
<form action="#top"method="post">
<p>choose you want.</p>
<select name="cmd">
<option value="shutdown"selected="selected">shutdown/ go to sleep.</option>
<option value="restart">restart computer/ ok,ifno password.</option>
<option value="logout">logout/ you don't want this.</option>
</select>
<input type="submit"name="submit"value="submit"/>
</form>
</body>
</html>