Basic functions: 1. Check-in classification: create custom categories; 2. Circle management: the backend can be customized to create and add check-in circles; 3. Comment management: manage and review the comments of members of each circle 4. Member management: manage basic information of members 5 . Order management: mainly manages the order function of the charging circle. 6. Withdrawal management: reviews and issues the withdrawal orders of circle owners; 7. Image management: including providing circle default avatars, circle background pictures, circle posters, check-in posters and other customized pictures; 8. , advertising management, announcement management, and theme management menus are used to create advertisements, announcements, themes and other functions;