insert into admin(adminid , username , password , realname , contact , addtime ) values(#{adminid} , #{username} , #{password} , #{realname} , #{contact} , #{addtime} ) update admin set username=#{username} , password=#{password} , realname=#{realname} , contact=#{contact} , addtime=#{addtime} where adminid=#{adminid} delete from admin where adminid = #{adminid} select a.* from admin a where 1=1 order by adminid desc select a.* from admin a where 1=1 and adminid=#{adminid} order by adminid desc select a.* from admin a where 1=1 and a.username = #{username} and a.password = #{password} and a.realname = #{realname} and a.contact = #{contact} and a.addtime = #{addtime} select a.* from admin a where 1=1 and a.username like CONCAT('%', CONCAT(#{username}, '%')) and a.password like CONCAT('%', CONCAT(#{password}, '%')) and a.realname like CONCAT('%', CONCAT(#{realname}, '%')) and a.contact like CONCAT('%', CONCAT(#{contact}, '%')) and a.addtime like CONCAT('%', CONCAT(#{addtime}, '%'))