thinkphp3.2使用join联合查询

• $members=$model->table('zhope_card A')
•                         ->join('zhope_user U ON A.adduser=U.id',"LEFT")
•                         ->join('zhope_tpl T ON A.tpl=T.id')
•                         ->field('A.id AS I,A.cid AS Card_id,U.name AS Creator,T.name AS Tpl_name')
•                         ->select();