1. 打開(kāi)`app/common/repositories/store/order/StoreOrderCreateRepository.php`文件,找到`653`行

2. 按照下圖修改第653行和662行代碼的紅色下劃線(xiàn)部分

        if (isset($platformCouponRate)) {
            $_coupon_price = $platformCouponRate['coupon_price'];
            foreach ($merchantCartList as &$merchantCart) {
                $_price = 0;
                foreach ($merchantCart['list'] as &$cart) {
                    if ($cart['true_price'] <= 0 || !$platformCouponRate['check']($cart)) continue;

                    if ($platformCouponRate['use_count'] === 1) {
                        $couponPrice = min($platformCouponRate['coupon_price'], $cart['true_price']);
                    } else {
                        $couponPrice = min(bcmul($_coupon_price, bcdiv($cart['true_price'], $platformCouponRate['price'], 3), 2), $cart['true_price']);
                    }
                    $platformCouponRate['coupon_price'] = bcsub($platformCouponRate['coupon_price'], $couponPrice, 2);
                    $cart['true_price'] = bcsub($cart['true_price'], $couponPrice, 2);
                    $cart['platform_coupon_price'] = $couponPrice;
                    $platformCouponRate['use_count']--;
                    $_price = bcadd($couponPrice, $_price, 2);
                }
                unset($cart);
                $merchantCart['order']['platform_coupon_price'] = $_price;
                $merchantCart['order']['true_price'] = bcsub($merchantCart['order']['true_price'], $_price, 2);
                $total_platform_coupon_price = bcadd($total_platform_coupon_price, $_price, 2);
            }

3. 修改后重啟 swoole 服務(wù)