Debit cards and credit cards can be swiped in supermarkets or paid online (debit cards need a separate online payment function, and credit cards are automatically opened). If your name is spelled in English, the validity period is in the lower left corner of the front of the card, usually a credit card, otherwise it is a debit card. Another way to judge is not to save a credit card that can be used for shopping, otherwise it is a debit card.