lib/forum/db/threadsdb.class.php
function _getLatestThreads
("SELECT t.tid FROM ".$this->_tableName." t WHERE t.ifcheck = 1 AND t.ifshield != 1 ".$_sql_where." ORDER BY t.postdate DESC LIMIT " . $offset . "," . $limit );
加一个fid!=0的条件 要不然删除的帖子id也会被读取出来
