1. 打開`\app\common\repositories\store\order\StoreRefundOrderRepository.php` 文件,找到`getRefundTotalPrice`方法

2. 使用下面的代碼替換原有的方法

    public function getRefundTotalPrice($order, $products)
    {
        $productRefundPrices = app()->make(StoreRefundProductRepository::class)->userRefundPrice($products->column('order_product_id'));
        $product = $products[0];
        $productRefundPrice = $productRefundPrices[$product['order_product_id']] ?? [];
        $total_refund_price = bcsub($product['product_price'], bcsub($productRefundPrice['refund_price'] ?? 0, $productRefundPrice['refund_postage'] ?? 0, 2), 2);
        $postage_price = !$order->status ? bcsub($product['postage_price'], $productRefundPrice['refund_postage'] ?? 0, 2) : 0;

        return compact('total_refund_price', 'postage_price');
    }

3. 修改后重啟 swoole 服務即可