$goods = pdo_fetchAll("SELECT og.total,og.optionid,g.weight FROM " . tablename('rongyu_shop_order_goods') . " og left join ".tablename('rongyu_shop_goods')." g on g.id=og.goodsid WHERE og.uniacid=:uniacid AND og.orderid=:orderid",array(":uniacid"=>$_W['uniacid'],":orderid"=>$order['id']));
$cargo_weight = 0;
foreach($goods as $good){
	if($good['optionid']){
		$op_weight = pdo_fetchcolumn("select weight from ".tablename('rongyu_shop_goods_option')." where id='{$good['optionid']}'");
		$cargo_weight += $good['total']*$op_weight;
	}else{
		$cargo_weight += $good['total']*$good['weight'];
	}
}