Alipay Merchant Edition can use credit card for payment and receipt, and the usage method is as follows:

1. First, open the Alipay client in your mobile phone.

2. Next, on the Alipay page, select the "Sweep" option indicated by the arrow.

3. Then use the code scanning function to scan the merchant's receipt code.

4. Then on the payment page, enter the payment amount and click "Confirm Payment".

5. When confirming payment, select the "Payment Method" indicated by the red arrow.

6. In the payment method list, select credit card payment and enter the payment password.