Class I card is the most versatile account, also known as debit card. It has a high degree of freedom and functions, and can be used for cash deposit and withdrawal, transfer, payment, payment and other operations, and there is no limit when using it. Credit card is a payment tool, and cardholders can make online and offline consumption through credit card, including shopping, traveling and paying bills. At the same time, credit cards also have the functions of installment payment and cash withdrawal.

Credit card holders can spend within a certain credit limit and repay their debts within the agreed repayment period. The issuance and management of credit cards are the responsibility of banks or other financial institutions.