python使用Flask框架的简单入门范例代码

使用Flask框架的简单入门范例代码，如果你正学习Flask框架，可以参考下面的启动代码，这段代码可以在网页上输出“hello world”

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)

# Define a route for the webserver ，http://www.75271.com
@app.route('/')
def index():
  return "Hello world"

if __name__ == '__main__':
	app.run( 
        host="0.0.0.0",
        port=int("80")
  )