把错误也贴下。

注意红字部分。
BEGIN
    declare main_id,business_id,people_count, msg_id,launch_user_id int;
    DECLARE business_type,msg_type CHAR(2);
    declare _DONE TINYINT(1) default 0;     /*能否达到记录的末尾控制变量*/
declare _DONE_O TINYINT;
    DECLARE regists CURSOR FOR select r.main_id, “”02″” as business_type, “”02″” as msg_type, r.id as business_id , r.launch_user_id, (SELECT count(DISTINCT la.wz_regist_user.user_id) FROM wz_regist_options JOIN wz_regist_user ON la.wz_regist_options.id = la.wz_regist_user.option_id WHERE la.wz_regist_options.regist_id = r.id) AS people_count   FROM  wz_regist r  where r.cutoff_datetime<=now() and r.status=””01″”;
    DECLARE CONTINUE HANDLER FOR NOT FOUND SET _DONE = 1;
    OPEN regists;
    LOOP_OUTER:LOOP
        FETCH regists INTO main_id, business_type, msg_type, business_id, launch_user_id, people_count;
        IF _DONE =1 THEN
            LEAVE LOOP_OUTER;
        END IF;
        BEGIN
set _DONE_O=_DONE;
                    update wz_regist r set r.status=””03″” where r.id = business_id;
                    insert into wz_user_message(main_id, title, content, msg_type, value_datetime, business_id, business_type)  values(main_id, “”系统通知””, concat(“”您发起的报名已截止，共有””,people_count,””人参与报名。””), msg_type, now(), business_id, business_type);
                    select LAST_INSERT_ID() into msg_id;
                    IF launch_user_id is not NULL  THEN
                            INSERT INTO wz_user_message_receive(message_id, wz_user_id, receive_datetime, is_read) VALUES (msg_id, launch_user_id, now(), “”0″”);
                    end IF;
                    IF people_count >0 THEN
                                insert into wz_user_message(main_id, title, content, msg_type, value_datetime, business_id, business_type)  values(main_id, “”系统通知””, concat(“”您参与的报名已截止，共有””,people_count,””人参与报名。””), msg_type, now(), business_id, business_type);
                                DECLARE msg_id_INNER int;
                                select LAST_INSERT_ID() into msg_id_INNER;
                                declare _inner tinyint(1) default 0; 
                                DECLARE joiner_id int(11);
                                declare continue handler for not found set _inner = 1;  
                                DECLARE regist_joiners CURSOR FOR SELECT DISTINCT wz_regist_user.user_id as joiner_id FROM wz_regist_options JOIN wz_regist_user ON wz_regist_options.id = wz_regist_user.option_id WHERE wz_regist_options.regist_id = business_id; 
 
                                OPEN regist_joiners;
                                LOOP_INNER:LOOP
                                            FETCH regist_joiners INTO joiner_id;
                                            if _inner=1 then  
                                                    leave LOOP_INNER;  
                                            end if;
                                            INSERT INTO wz_user_message_receive(message_id, wz_user_id, receive_datetime, is_read) VALUES (msg_id, joiner_id, now(), “”0″”);   
                                END LOOP;
                                COMMIT;
                    END IF;
set _DONE=_DONE_O;
        END;
    END LOOP;
END