1. Open the following users' homepage, find the circle to join, and click.
2. After opening the circle home page, click the "Settings" icon in the upper right corner of the interface.
3. After opening the "Circle Settings" interface, find the "Exit Circle" button and click it.
4. Open the pop-up window of "Confirm to quit the circle" and click the "Exit" button.
5. After returning to the "Enter Circle" interface, you can see the text prompt "Exit Circle Successfully", thus successfully exiting the circle.