[web] flask 기본

1. install

   pip install flask

2.  기본 테스트 app 

from flask import Flask

app = Flask(__name__)

@app.route("/")

def index():

    return "Hello, World!"

if __name__ == '__main__':

    app.run(port=5000, debug=True)

3. 기본 web 설정

sudo apt-get install apache2

sudo apt-get install libapache2-mod-wsgi