<p>　　<code><?php<br />if(!$_GET["screenX"]) {<br />echo '<br /><script><br />location = location.href+"?screenX="+screen.width+"&screenY="+screen.height;<br /></script><br />';<br />exit;<br />}<br />$screenX = $_GET["screenX"];<br />$screenY = $_GET["screenY"];<br />?></code></p><p>　　以下是其他内容</p>