1. Open Alipay and find the service window.
2. Click "Service Window" to open any window.
3. There is a "service hall" at the lower left of the window page. Click to open it.
4. After entering the "Service Hall", you are in the "Need Attention" question interface. Then find "Payment and Refund" and open it again.
5. After entering the "Payment and Refund" interface, find the question "Payment methods supported by Alipay wallet" under this interface.
6. Then click to open this question. After entering this question, the following questions are given. Find "How to pay by credit card" and click Open.
7. After entering this question, the page will give a more detailed prompt, and then you can pay by credit card according to the prompt.