Flask简单易学， Flask 第一个程序

下面是Flask版的hello world(hello.py):


from flask import Flask
app = Flask(__name__)
@app.route("/")
def hello():    
return "Hello World!"

if __name__ == "__main__":
app.run()


$ python hello.py
* Running on http://localhost:5000/

flask默认端口是5000
http://127.0.0.1:5000  #即可访问