flask路由

from flask import Flask
from werkzeug import redirect
from flask.helpers import url_for
app = Flask(__name__)
@app.route('/')
def Index():
    return "Index Page"
@app.route('/hello')
def hello():
    return "Hello World!"
@app.route('/hello/<username>')
def Hi(username):
    return "Hi %s" % username    
@app.route('/post/<int:post_id>')
def postid(post_id):
    return "post_id: %d" %post_id
@app.route('/path/<path:subpath>')
def show_subpath(subpath):
    return "Path %s" % subpath 
@app.route('/message/') 
def message1():
    return 'Redirect to another web Page!'
@app.route('/jump/')
def show_url():
    return redirect( url_for('message1'))
@app.route('/test/')    
def test_url_for():
    #return 'Hi %s!' % name
    return redirect(url_for('Hi', username='GreyLi'))    
   
if __name__=="__main__":
    app.run(port=888)