At one time, the card number of ordinary savings card was flat, and the card number of credit card was convex \x0d\ Now the card number of ordinary savings card is also convex, and the card number of credit card is flat \x0d\ But one thing has not changed, that is, the front of credit card has the pinyin of the cardholder's name (capital letters, surname and name) \x0d\ because ordinary savings cards are made in batches by banks, and then users apply, x0d.