select * from dbxx3 where id < order by id desc limit 16
执行错误: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'order by id desc limit 16' at line 1

61.          }else{
62.              spError("{$sql}<br />执行错误: " mysql_error());
63.          }
216.      {
217.          return $this->_db->exec($sql);
218.      }
219.      // query是runSql的别名,向前兼容
220.      public function query($sql){return $this->runSql($sql);}
221. 
24.          $rand_id=$id;
25.          $ret1=$dbbt->query("select * from $table where id <$rand_id order by id desc limit 16");
26.          while ($row=mysql_fetch_assoc($ret1)){
23.      // 路由并执行用户代码
24.      $handle_controller->$__action();
25.      // 控制器程序运行完毕,进行模板的自动输出
42. 
43.  spRun(); // SpeedPHP 3新特性