select * from pinglun select * from pinglun and id= #{id} and zid= #{zid} order by id desc select * from pinglun where id=${value} insert into pinglun (contents,fbsj,uname,uhead,zid,huifu) values (#{contents},#{fbsj},#{uname},#{uhead},#{zid},#{huifu}); update pinglun set contents=#{contents},fbsj=#{fbsj},uname=#{uname},uhead=#{uhead},zid=#{zid},huifu=#{huifu} where id=#{id} delete from pinglun where id=${value}