数据可视化
如何开始
$ cd data_visualization/mysite
start back server
$ virtualenv venv --python=python3
$ source venv/bin/activate
$ pip install -r requirements.txt
$ python manage.py makemigrations
$ python manage.py migrate
$ python manage.py runserver
open new terminal and under same directory, start front server
$ cd my-app
$ npm install
$ npm start
