python中Flask框架简单入门实例

import os
# Using Flask since Python doesn't have built-in session management
from flask import Flask, session
app = Flask(__name__)
# Generate a secret random key for the session
app.secret_key = os.urandom(24)
@app.route('/')
def index():
 return "Hello world"
if __name__ == '__main__':
 app.run( 
    host="0.0.0.0",
    port=int("80")
 )