bank card B/C(bank card)\xd\ debit card D/C(Debit Card)\xd\ credit card C/C(Credit Card)\xd\ bank card is a credit payment tool issued by financial institutions such as commercial banks and postal savings and remittance institutions with all or part of the functions of consumer credit, transfer settlement, cash deposit and withdrawal, etc. Bank cards include credit cards and debit cards. Because all kinds of bank cards are made of plastic, they are also used for deposit and withdrawal and transfer payment, so they are also called "plastic money". The size of a bank card is generally 85.6×53.98mm(3.37×2.125 inches), and there are also mini cards and irregular cards that are 43% smaller than ordinary cards. \xd\\xd\ Debit card \xd\ Debit card can be divided into transfer card, special card and stored value card according to different functions. Debit cards cannot be overdrawn. The transfer card has the functions of transfer, cash deposit and withdrawal and consumption. A special card is a debit card used in a specific area and for special purposes (referring to uses other than department stores, restaurants and entertainment industries). It has the functions of transferring money and depositing and withdrawing cash. Stored value card is a prepaid wallet debit card in which the bank transfers funds to the card for storage according to the cardholder's requirements, and directly deducts money from the card during the transaction. \xd\ 〔debit card〕 can be used for online or POS consumption or ATM transfer and withdrawal, and cannot be overdrawn. Interest is paid on the amount in the card according to the current deposit. When spending or withdrawing money, the funds are directly drawn from the savings account. Debit cards generally require a password (PIN) when used. Debit cards can be divided into ordinary cards, gold cards and platinum cards according to their grades; According to the scope of use, it can be divided into domestic cards and international cards. \ xd \ xd \ credit card \ xd \ xd \ credit card is divided into debit card and quasi-credit card. Credit card refers to a credit card in which the issuing bank gives the cardholder a certain credit line, and the cardholder can spend first and then repay. Quasi-credit card refers to a credit card in which the cardholder first deposits a certain amount of reserve fund according to the requirements of the bank, and when the reserve fund is insufficient to pay, it can be overdrawn within the credit limit stipulated by the issuing bank.