begin
update bbs_zhutie a ,(select id,max(last_reply_sequence) last_reply_sequence from bbs_zhutie) as b set a.last_reply_sequence = b.last_reply_sequence+1,a.last_reply_user = new.user_id, a.last_reply_date = new.create_date ,a.count = a.count+1, a.reply_count = a.reply_count+1 where a.id = new.bbs_zhutie_id;
end