Preparation tools: computer.

1. After spending on Alipay, jump to Alipay and enter the Alipay cashier interface.

2. After entering the Alipay cashier interface, scroll down and click "Bank Card" to enter the add bank card interface.

3. Enter the add bank card interface, enter the bank card you want to add, and click "Next".

4. After entering the bank card number, select the payment method as "Quick Payment" and click Next.

5. Fill in the relevant information in the pop-up interface and click "Agree Agreement and Pay" to complete the binding.