Specific steps: 1. First, on the homepage of WeChat app, click the magnifying glass icon in the upper right corner of the page.
2. Enter "Beijing Health Treasure" in the search field, and enter the result indicated by the arrow in the figure.
3. After the page jumps, click "Log out" at the bottom of the page.
4. After logout, the page will jump to the homepage of the applet, prompt login, enter the account password, and then click Login.