1. First open the Tik Tok campus circle, then click the "My" button in the lower right corner, and then click "Settings".

2. Secondly, find the "exit" option on the settings page. After clicking, you will be prompted "The login information will be cleared after exiting. Are you sure you want to quit? Select OK to complete the exit operation.

3. Finally, if you want to protect personal information, you can also choose to clear the cache and data, which is safer.