试试这样：）<br>
应该可以了。。<br>
header("Expires: Mon, 26 Jul 2000 05:00:00 GMT");<br>
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . "GMT");<br>
header("Cache-Control: no-cache, must-revalidate");<br>
header("Pragma: no-cache");