and a.id= #{id} and a.uid= #{uid} select a.*,b.name,b.tel from liuyan a left join userinfo b on a.uid=b.id order by id desc select count(*) nums from liuyan a left join userinfo b on a.uid=b.id select * from liuyan where id=${value} insert into liuyan (uid,lynr,lysj,lyhf) values (#{uid},#{lynr},#{lysj},#{lyhf}); update liuyan set uid=#{uid},lynr=#{lynr},lysj=#{lysj},lyhf=#{lyhf} where id=#{id} delete from liuyan where id=${value}