If you just haven't downloaded Alipay, you can download one in your mobile phone and apply for a health code after real-name registration. In addition, if there is no Alipay, you can apply for a health code through your family. You can handle the health codes of parents, children and spouses on Alipay.
The specific steps for Alipay to apply for a health code: log in to Alipay app, enter the area name and health code in the search box on the home page, click Enter in the search results, then you need relevant authorization, and then enter the application page. At this time, you can choose a password application, and the user can get the QR code after filling in the information, and then you can use it.