1. The merchant opens the pos machine and selects the credit card payment method.

2. The consumer opens Alipay app, selects "My", then selects "Flower Shop" or "Credit Card", and selects the credit card to be repaid or paid.

3. Enter the repayment or payment amount and select "Receipt Code" to let the merchant scan the receipt code generated by Alipay with pos machine.

4. After confirming the payment information, the merchant can complete the payment by entering the payment password or using the fingerprint to confirm the payment.