Bank of Communications debit card refers to a bank card without overdraft function. The functions of \ x0d \ x0d \ debit card include basic functions such as transfer settlement, cash deposit and withdrawal, shopping and consumption. It has also added many functions such as transfer, trading funds, stock trading, payment, and provided many value-added services. Debit cards can also be withdrawn by ATM transfer without overdraft. The amount in the account pays interest according to the current deposit. \ x0d \ x0d \ debit card is what we call a savings card. Both of them point to the same thing, but we are used to calling them savings cards in our lives, which are named from the perspective of cardholders' savings and financial management, while debit cards are named from the perspective of bank expenditure records. \x0d\\x0d\ Debit card is a technical term and cannot be overdrawn. Deposit is required before withdrawal or consumption. Debit cards are different from credit cards that can be overdrawn, that is, credit cards. Savings card is a common name for debit card. Debit cards have many functions, such as current deposit and withdrawal, fixed deposit and withdrawal, payroll payment, purchase of national debt, fund management, signing third-party depository, electricity purchase, telephone payment, credit card consumption, online banking inquiry, transfer, payment and online payment.