a credit card, a savings card, etc. are bound to the payment terminal, and when spending, the merchant can scan the payment code and complete the payment. There is a drawback to mobile phone payment. You can only choose credit card payment when you have a merchant account, and you can only choose a savings card if you have a personal account. This limitation will make many credit card holders cry out for imperfection. Therefore, the "cloud payment" APP, which makes the mobile phone change into a POS machine in seconds, was born, and it is easy to swipe the credit card on the mobile phone, complete the capital turnover, and gradually improve the trend of card-free payment. Therefore, this model is deeply loved by everyone, with convenient use and low handling fee.

a credit card is a credit certificate issued by a commercial bank or a credit card company to a qualified consumer. Consumers with credit cards can go to special commercial service departments for shopping or spending, and then the bank will settle accounts with merchants and cardholders, and cardholders can overdraw within the prescribed limit.

In addition to spending by swiping the card, credit cards can also be used for online payment and flash payment transactions. Different ways of using credit cards have different advantages and disadvantages.

1. Credit card consumption: credit card is swiped by POS machine, which can be divided into card insertion or card swiping according to the types of credit cards, such as magnetic stripe card swiping and chip card swiping. Many banks are not very friendly to credit card consumption. Now they only recognize UnionPay POS machines, and do not count points for POS machine transactions paid by third parties. Frequent use is at risk of being downgraded and blocked.

2. Online payment: that is, tying cards to third-party payment platforms, such as Alipay, WeChat, JD Finance, Meituan, etc., many banks prefer online payment after the big change in points. In the past, few online payments had points, but now, conversely, many merchants pay offline without points, but most online payments have points.

3. Flash payment transaction: it can also be regarded as credit card consumption, but it is different from the traditional credit card method. It mainly uses the non-receiving payment method, and you don't need to take your card out. Just bind a credit card to your mobile phone and call up the payment interface, and put your mobile phone near the flash payment POS machine. You can directly skip the password for a single payment that does not exceed 1 yuan, and most of them also have points.