织梦的arclist标签可以按照文章点击次数、发布日期、得分等进行排序，今天有个客户需要按照软件下载次数进行排列，于是做了简单二次开发，首先找到include目录下面的taglib目录里的arclist.lib.php文件在376行后加入如下代码
   if($orderby == &＃39;down&＃39;)  {   $sql = "select SUM(downloads) as down_num,id from dede_downloads group by id ORDER BY down_num DESC LIMIT 0,15";   $dsql->Execute(&＃39;me&＃39;,$sql);   while($drow = $dsql->GetArray() )   {    $arr[] = $drow[&＃39;id&＃39;];   }   $dstr = implode(",",$arr);   if($orwhere!=&＃39;&＃39;)   {    $orwhere .= " AND arc.id in($dstr)";   }else{    $orwhere .= " where arc.id in($dstr)";   }   $ordersql = &＃39;ORDER BY field(arc.id,&＃39;.$dstr.&＃39;)&＃39;;  }
 

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