1. Open WeChat, enter the "Discovery" page, and click "Pay", as shown below.
2. Enter "city service", as shown in the figure below.
3. Enter "epidemic prevention and health code", as shown in the figure below.
4. Click "Get Now", as shown in the figure below.
5. Click on "punch in", as shown in the figure below.
6. Fill in the health information of the day, including the current body temperature, then check the person to be filled in and click "Submit", as shown in the following figure: