As an important development product in the financial industry, credit card is not only a kind of consumer credit. The credit card industry now has a new development model. Credit card is a closed-loop model, which can realize self-profit.

Credit card, also called debit card, is a credit certificate issued by a commercial bank or credit card company to eligible consumers. It is a card with name, expiration date, number and cardholder's name printed on the front, and a magnetic stripe and signature strip on the back.