在跟著《Flask Web開(kāi)發(fā)：基于Python的Web應(yīng)用開(kāi)發(fā)實(shí)戰(zhàn)》這本書(shū)中的例子寫(xiě)程序。 有兩個(gè)頁(yè)面，一個(gè)是主頁(yè)面index，一個(gè)是user頁(yè)面 打開(kāi)主頁(yè)會(huì)出現(xiàn)Internal Server Error，/user/xxx頁(yè)面顯示正常 hello.py from flask import Flask, render_template from flask.ext.script import Manager from flask.ext.bootstrap import Bootstrap from flask.ext.moment import Moment from flask.ext.wtf import Form from wtforms import StringField, SubmitField from wtforms.validators import Required from datetime import datetime app = Flask(__name__) app.config['SECRET_KEY'] = 'hack me' manager = Manager(app) bootstrap = Bootstrap(app) moment = Moment(app) class NameForm(Form): name = StringField('What is your name?', validators=[Required()]) submit = SubmitField('Submit') @app.errorhandler(404) def page_note_found(e): return render_template('404.html'), 404 @app.errorhandler(500) def internal_server_error(e): return render_template('500.html'), 500 @app.route('/', methods=['GET', 'POST']) def index(): name = None form = NameForm() if form.validate_on_submit(): name = form.name.data form.name.data = '' return render_template('index.html', form=form, name=name, current_time=datetime.utcnow()) @app.route('/user/<name>') def user(name): return render_template('user.html', name=name) if __name__ == '__main__': manager.run() index.html {% extends "base.html" %} {% import "bootstrap/wtf.html" as wtf %} {% block title %}Flasky{% endblock %} {% block page_content %} <div class="page-header"> <h1>Hello ,{% if name %}{{ name }}{% else %}Stranger{% endif %}!</h1> </div> {{ wtf.quick_form(form) }} <p>the local time is {{ moment(current_time).format('LLL') }}</p> <p>that was {{ moment(current_time).fromnow(refresh=True) }}</p> {% endblock %} base.html {% extends "bootstrap/base.html" %} {% block title %}Flasky{% endblock %} <!--引用moment.js--> {% block scripts %} {{ super() }} {{ moment.include_moment() }} {% endblock %} {% block head %} {{ super() }} <link rel="shortcut icon" href="{{ url_for('static', filename='favicon.ico') }}" type="image/x-icon"> <link rel="icon" href="{{ url_for('static', filename='favicon.ico') }}" type="image/x-icon"> {% endblock %} {% block navbar %} <div class="navbar navbar-inverse" role="navigation"> <div class="container"> <div class="navbar-header"> <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse"> <span class="sr-only">Toggle navigation</span> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button> <a class="navbar-brand" href="/">Flasky</a> </div> <div class="navbar-collapse collapse"> <ul class="nav navbar-nav"> <li><a href="/">Home</a></li> </ul> </div> </div> </div> {% endblock %} {% block content %} <div class="container"> {% block page_content %}{% endblock %} </div> {% endblock %} 吐槽一下segmentfault的編輯器：在編輯模式下排版正常，可是實(shí)際顯示的樣式和編輯模式下的排版不一樣。