the practice follow with this guide: https://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-i-hello-world
and the old ver(Chinese ver):http://www.pythondoc.com/flask-mega-tutorial/
- venv\Scripts\activate --- start the venv environment
- (venv) $ set FLASK_APP = microblog.py --- find the run path
- (venv) $ flask run