``` $res = M('settlement') ->field(['*','sum(total_amount)'=>'total_amount','sum(price)'=>'price','sum(agent_coupon_price)'=>'agent_coupon_price','sum(integral_money)'=>'integral_money','sum(settlement_price)'=>'settlement_price','sum(price_back)'=>'price_back','sum(clean_price)'=>'clean_price']) ->group('uid') ->select(); $this->assign("data", $res); $this->display(); ```