ecshop订单中只要有一个是包邮商品，就整个订单都包邮

includes/lib_order.php搜索“查看购物车中是否全为免运费商品，若是则把运费赋为零”，将

$sql = 'SELECT count(*) FROM ' . $GLOBALS['ecs']->table('cart') . " WHERE `session_id` = '" . SESS_ID. "' AND `extension_code` != 'package_buy' AND `is_shipping` = 0";

修改为

$sql = 'SELECT count(*) FROM ' . $GLOBALS['ecs']->table('cart') . " WHERE `session_id` = '" . SESS_ID. "' AND `extension_code` != 'package_buy' AND `is_shipping` = 1";

再把

$total['shipping_fee'] = ($shipping_count == 0 AND $weight_price['free_shipping'] == 1) ?0 : shipping_fee($shipping_info['shipping_code'],$shipping_info['configure'], $weight_price['weight'], $total['goods_price'], $weight_price['number']);

修改为

$total['shipping_fee'] = ($shipping_count >= 1 AND $weight_price['free_shipping'] == 1) ?0 : shipping_fee($shipping_info['shipping_code'],$shipping_info['configure'], $weight_price['weight'], $total['goods_price'], $weight_price['number']);

即可以实现购物车中只要有一个商品是免邮费的则整个购物车中都免邮。