（1） （2） （3） （4） （5）
A． Fill in the price and the password carefully．
B． Use your smartphone to scan the Alipay QR code（二维码）．
C． Add a bank card and enter your card information．
D． The payment completion page is shown after you click the "pay" button．
E． Get the app of Alipay． Sign up with your mobile phone number， then set a password．