public static function showAliexpressSurfaceList($field, $where) { self::initDB(); $sql = "select {$field} from om_aliexpress_surface where {$where} "; //echo $sql;exit; $queryresult = self::$dbConn->query($sql); if (empty($queryresult)) { //更新失败 self::$errCode = '005'; self::$errMsg = '更新状态失败!'; return FALSE; } return self::$dbConn->fetch_array_all($queryresult); }