//后台程序sign.php源代码如下: <?require(../opendata.php);?> <? if($action==sign) { if($say==||$title==||$url==||$size==) { header(location:../message.php?message=资料不完整&redirect=download/download.php?page=0&action=publish); break; } $say=htmlspecialchars($say); $title=htmlspecial