a system with resigter and customed definition.
this project is a combination of https://github.com/anfederico/Flaskex and https://github.com/xuweicn1/Todolist
usage:
- git or dowmload all files
- in terminal input: pip insatll -r requirements.txt
- in terminal input: python run2.py
more introduction: https://mp.csdn.net/postedit/103824124