You can transfer money to a credit card, and transferring money to a credit card is equivalent to repaying a credit card. If the current bill has been paid off, the money transferred to the card becomes overpaid. When using a credit card, the system will give priority to deducting the overpaid part, and only after deducting the overpaid part will the available credit card be deducted. Transfer refers to a bank currency settlement method that transfers money from the payment account to the collection account through the bank without using cash directly.