Gucci stores can use credit cards, domestic luxury stores can use credit cards, and shopping malls, supermarkets and regular stores all support credit card consumption. Credit card, also known as debit card, is a credit certificate issued by commercial banks or credit card companies to eligible consumers. It is in the form of a card, with the issuer's name, expiration date, number and cardholder's name printed on the front, and a magnetic stripe and signature strip on the back. Credit cards have both payment and credit functions. Cardholders can use it to buy goods or enjoy services, and they can also get some loans from card issuers. It is a high-tech product integrating financial business and computer technology, which can reduce the use of cash and currency.