* An application tool that uses Firebase's Cloud Firestore + Storage as data storage.
* Please complete the Firebase account application before use.
Apply for teaching: http://shioulo.no-ip.org/GetFirebase
step:
1. Apply for an account
2. Create a project
3. Create an account in the project ()
4. Turn on Cloud Firestore function
5. Turn on the storage function
6. Obtain the google-services.json file in the project setting function

1. Use the free cloud database Firestorn to create a shift schedule and announcement management system for your own company employees.
2. Shift schedule: multiple shifts can be established to arrange employees' work schedules.
3. Announcement: You can announce messages and upload announcement attachments by class.
4. My shift schedule: You can check your schedule date
5. Attendance and salary: You can view your attendance date and the estimated attendance salary during the calculation period, and you can also export the list data.
6.The app provides role management: operate different functions according to the assigned role.