老师好，创建订单是扣了库存的，现在取消订单是不是应该把库存加上去呢

        //判断商品是否存在、上下架状态、库存
        validSaleStatusAndStock(cartVOList);
        //把购物车对象转为订单item对象
        List<OrderItem> orderItemList = cartVOListToOrderItemList(cartVOList);
        //扣库存
        for (int i = 0; i < orderItemList.size(); i++) {
            OrderItem orderItem = orderItemList.get(i);
            Product product = productMapper.selectByPrimaryKey(orderItem.getProductId());
            int stock = product.getStock() - orderItem.getQuantity();
            if (stock < 0) {
                throw new ImoocMallException(ImoocMallExceptionEnum.NOT_ENOUGH);
            }
            product.setStock(stock);
            productMapper.updateByPrimaryKeySelective(product);
        }