function add($params)
 {
     $re = $this->db->exec("insert into `progress` set \n\t\t\t\tbusiness_id=:business_id,\n\t\t\t\tprocess_id=:process_id,\n\t\t\t\tnote=:note,\n\t\t\t\tdate_end=:date_end,\n\t\t\t\tcreate_time=now()\n\t\t\t", $params);
     if ($re == 1) {
         include 'msg.php';
         $msg = new Msg($params['business_id'], 'business');
         $msg->pushMessage('工商注册', '尊敬的客户你的工商注册进度更新了');
     }
     return $re;
 }