Cardholders apply for multiple credit cards in the same bank, and the credit line is shared. The shared credit limit is subject to the maximum credit limit of the credit card in the cardholder's hand. Cardholders have multiple credit cards in the same bank, so the amount of one of the credit cards will also occupy the total sharing amount. If a cardholder has a credit line of 60,000 and a credit line of 20,000, when the cardholder finishes the credit line of 20,000, the cardholder can only brush the credit line of 60,000, and the two cards share the credit line of 60,000.