Tools/materials: Huawei p40, EMUI 10. 1, Alipay 10.2.8.
1. Open Alipay and click the Citizen Center on the home page.
2. Switch the city to "Chengdu" and click the Sichuan Tianfu Health link.
3. Under Health Code, click Other Services.
4. Click "Download Health Code".
5. Download and use "Save to Album".