from flask import Flask,url_for
app = Flask(__name__)
@app.route('/')
def hello_world():
print (url_for('my_list'))
print (url_for('article',id='123'))
return 'Hello World!'
@app.route('/list/')
def my_list():
return 'list'
@app.route('/article/<id>/')
def article(id):
return 'ni hao:%s'% id









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