You should mean to brush the bus code. Alipay's ride code is directly deducted from Alipay. If there is money in the change, you can deduct it directly. If you have no money, just deduct it from your garden. If not, you need to pay by bank card.
Similarly, if you use the WeChat bus code, you can pay from your WeChat. If there is no money in your WeChat change, you need to pay by bank card.