There are many kinds of bank card businesses issued by banks, but they are basically credit cards and debit cards. The former can be overdrawn first and then repaid. The latter can't overdraw, but only deposit first and then consume. Credit cards and debit cards can actually be distinguished from each other in appearance:

1. Credit cards are printed with the cardholder's name pinyin and credit card expiration date on the front, while debit cards of the same kind are the same, with no personality, no cardholder's name pinyin on the front and most of them have no expiration date;

2. Card numbers of credit cards are embossed, while debit cards may be in flat font;

3. Some dual-currency credit cards are marked by international credit card organizations such as VISA or MasterCard, while debit cards are basically not;

4. The signature column of a credit card usually has 7 digits, which is an important verification code of a credit card, while a debit card basically does not;

5. There are laser anti-counterfeiting labels on the back of credit cards, but there are almost no debit cards;

6. almost all credit cards have the words "cardholder's signature, which is invalid without signature" under the signature column, while debit cards usually only have the words "cardholder's signature" on the right side of the signature column.