Flask(MVC/路由 三)

def route(self, rule, **options):
    """A decorator that is used to register a view function for a
    given URL rule.  This does the same thing as :meth:`add_url_rule`
    but is intended for decorator usage::

        @app.route('/')
        def index():
            return 'Hello World'

    For more information refer to :ref:`url-route-registrations`.

    :param rule: the URL rule as string
    :param endpoint: the endpoint for the registered URL rule.  Flask
                     itself assumes the name of the view function as
                     endpoint
    :param options: the options to be forwarded to the underlying
                    :class:`~werkzeug.routing.Rule` object.  A change
                    to Werkzeug is handling of method options.  methods
                    is a list of methods this rule should be limited
                    to (``GET``, ``POST`` etc.).  By default a rule
                    just listens for ``GET`` (and implicitly ``HEAD``).
                    Starting with Flask 0.6, ``OPTIONS`` is implicitly
                    added and handled by the standard request handling.
    """

    def decorator(f):
        endpoint = options.pop("endpoint", None)
        self.add_url_rule(rule, endpoint, f, **options)
        return f

    return decorator

@app.route('/hello')
@app.route('/')
def hello_world():
    return render_template('index.html')

import time    
def log_time(func):
    def decorator(*args, **kwargs):
        print(time.time())
        return func(*args, **kwargs)

    return decorator

@app.route('/hello')
@app.route('/')
@log_time
def hello_world():
    return render_template('index.html')

@app.route('/cases/<id>',defaults={'id':3})

@app.route('/cases/<id>')
def hello_world(id=3):
    return render_template('index.html')

from flask import Flask

app = Flask(__name__)
import urls

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

from main import app
import views

app.add_url_rule('/', view_func=views.home)
app.add_url_rule('/cases', view_func=views.cases)

def home():
    return 'home'


def cases():
    return 'cases'