, that is, before the repayment date of each installment, the user inputs "My Repayment" for manual repayment; The second is automatic repayment; Users can pay the monthly repayment amount in full in the bound bank card, so that the system will automatically deduct money from the bank card on the repayment date; The third is Alipay repayment. If the user can't take the initiative to repay through the bank card, he can repay through Alipay.