πͺͺConvenient Payment (taking Alipay as an example)
Registration
Open Alipay > click "Register" to register
Verify and add a bank card
Click "Account", "Bank Card", "Add Bank Card" in the lower right corner, and add a card according to the prompts on the page. Click "Verify Now" and fill in your identity information according to the prompts on the page.
Payment
Click "Scan" and scan the QR code provided by the merchant. Click "Pay/Receive" and show your QR code to the merchant.