zhangjingyu 
经测试，后台pw缓存库对应的php文件是lib/elementupdate.class.php。楼上提到的很可能是会员排行榜的相关函数是userSortUpdate()（楼上红色标定。下面的代码略有修改，但没能成功实现）：
“    function userSortUpdate($winddb) {
        global $timestamp, $tdtime, $montime, $_CREDITDB;
        if ($this->_inUidBlackList($winddb['uid'])) {
            return false;
        }
        $usersort_judge = array();
        //* include pwCache::getPath(D_P . 'data/bbscache/usersort_judge.php');
        extract(pwCache::getData(D_P . 'data/bbscache/usersort_judge.php', false));
        $winddb['lastpost'] < $tdtime && $winddb['todaypost'] = 0;
        $winddb['lastpost'] < $montime && $winddb['monthpost'] = 0;
        $sorttype = array(
            'money',
            'rvrc',
            'credit',
            'currency',
            'todaypost',
            'monthpost',
            'postnum',
            'monoltime',
            'onlinetime',
            'digests',
            'f_num'
        );
        if ($_CREDITDB) {
            $query = $this->db->query("SELECT cid,value FROM pw_membercredit WHERE uid=" . S::sqlEscape($winddb['uid']));
            while ($rt = $this->db->fetch_array($query)) {
                if (!$rt['value']) continue;
                $winddb[$rt['cid']] = $rt['value'];
            }
            foreach ($_CREDITDB as $key => $val) {
                is_numeric($key) && $sorttype[] = $key;
            }
        }
        $change = $marks = array();
        foreach ($sorttype as $value) {
            if (in_array($value,$sorttype) && $winddb[$value]>PW_OVERFLOW_NUM) {
                $this->_excuteOverflow($winddb['u