from flask import Flaskapp = Flask(__name__)@app.route("/url")def handle_url:    return "Something"

from flask import url_forurl_for()

from flask import redirectredicrect()

from flask import requestfrom flask import make_response// 设置Cookieresponse = make_response(url_for(‘index‘))response.set_cookie(name, json.dumps(dict))// 获取Cookiejson.loads(request.cookies.get(name))

{{ value }}分支语句{% if something %}...{% else %}...{% endif %}循环语句{% for object in objects %}...{% endif %}

// 基类: base.html...{% block content %}{% endblock %}...// 子类: child.html{% extends "base.html" %}{% block content %}...{% endblock %}

from flask import flash// 注意: 使用前需要配置app.secret_keyflash(strings)*.html{{ get_flashed_messages()[n] }}

@app.errorhandle(error_number)

from flask import abortabort(error_number)

$ mkdir app$ cd app/$ virtualenv flaskNew python executable in /home/user/app/flask/bin/python2Also creating executable in /home/user/app/flask/bin/pythonInstalling setuptools, pip, wheel...done.$ source flask/bin/activate(flask) $(flask) $ deactivate