制作首页的显示列表。

1. 在首页添加显示问答的列表，并定义好相应的样式。

无序列表

<ul >

  <li>Coffee</li>

  <li>Tea</li>

  <li>Milk</li>

</ul>

2. 用字典向index.html传递参数。

 

from flask import Flask,render_template,request,redirect,url_for,session
from flask import Flask
from flask_sqlalchemy import SQLAlchemy
import config
from functools import wraps
from datetime import datetime

app = Flask(__name__)
#app.config['SECRET_KEY'] = '1234567'
app.config.from_object(config)
db = SQLAlchemy(app)

class User(db.Model):
    __tablename__ = 'user_test'
    id=db.Column(db.Integer,primary_key=True,autoincrement=True)
    username=db.Column(db.String(20),nullable=False)
    password = db.Column(db.String(20), nullable=False)
    nickname = db.Column(db.String(20))
    tel = db.Column(db.String(20))

class Question(db.Model):
    __tablename__ = 'question'
    id=db.Column(db.Integer,primary_key=True,autoincrement=True)
    title = db.Column(db.String(100),nullable=False)
    detail = db.Column(db.Text,nullable=False)
    creat_time = db.Column(db.DateTime,default=datetime.now)
    author_id = db.Column(db.Integer,db.ForeignKey('user_test.id'))
    author = db.relationship('User',backref=db.backref('question'))

#db.create_all()


#user = User(username = 'mis1',password = '124', nickname='wk')
#db.session.add(user)
#db.session.commit()



#user = User.query.filter(User.username == 'mis1234').first()
#print(user)
#print(user.id,user.username)


#user = User.query.filter(User.username == 'mis1234').first()
#user.password = '123'
#db.session.commit()


# user = User(username = 'wkkkkkk',password = '123456', nickname='kk')
# db.session.add(user)
# db.session.commit()


#user = User.query.filter(User.username == 'mis1234').first()
#db.session.delete(user)
#db.session.commit()




@app.route('/')
def index():
    context={
        'questions':'python20171201'
    }
    return render_template('index.html',**context)


@app.route('/detail/<question_id>')
def detail(question_id):
    return render_template('detail.html',ques = question_id)







@app.route('/login/',methods=['GET','POST'])
def login():
    if request.method == 'GET':
        return render_template('login.html')
    else:
        usern = request.form.get('uname')
        passw = request.form.get('upass')
        user = User.query.filter(User.username==usern).first()
        if user:
            if user.password == passw:
                session['user'] = usern;
                return redirect(url_for('index'))
            else:
                return 'password error!'
        else:
            return 'username is not exister!'



@app.route('/register/',methods=['GET','POST'])
def register():
    if request.method =='GET':
        return  render_template('register.html')
    else:
        usern = request.form.get('uname')
        teln = request.form.get('number')
        passw = request.form.get('upass')
        user = User.query.filter(User.username==usern).first()
        if user:
            return 'username existed'
        else:
            user1= User(username=usern,tel=teln,password=passw)
            db.session.add(user1)
            db.session.commit()
            return redirect(url_for('login'))


@app.context_processor
def mycontext():
    usern = session.get('user')
    if usern:
        return{'username':usern}
    else:
        return {}

def loginFirst(func):
    @wraps(func)
    def wrapper(*args,** kwargs):
        if session.get('user'):
            return func(*args,** kwargs)
        else:
            return redirect(url_for('login'))
    return wrapper





@app.route('/question/',methods=['GET','POST'])
@loginFirst
def question():
    if request.method =='GET':
        return  render_template('question.html')
    else:
        biaoti = request.form.get('biaoti')
        detail = request.form.get('detail')
        author_id = User.query.filter(User.username==session.get('user')).first().id
        question = Question(title=biaoti,detail=detail,author_id=author_id)

        db.session.add(question)
        db.session.commit()
    return redirect(url_for('index'))


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

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>首页</title>
    <link rel="stylesheet" type="text/css" href="{{ url_for('static',filename='css/index.css')}}">
</head>
<body>
<a href="http://127.0.0.1:5000/login/">login</a>
<a href="{{ url_for('register')}}">register</a>
<a id="href" href="{{ url_for('question') }}">question</a>

<p>{{ username }}contextx</p>


<div class="list-container">
            <ul class="news-list">
{#                <li style="padding-left: 0px; padding-right: 10px; box-shadow: rgba(0, 0, 0, 0.5) 0px 0px 0px 0px;">#}
{#                <a href="#">username#}
{#                    <div class="news-list-thumb"><img src=""></div>#}
{#                    <div class="news-list-text">#}
{#                        <div class="news-list-title" style="">迪丽热巴</div>#}
{#                        <div class="news-list-description">女神</div>#}
{#                        <div class="news-list-info">2017-11-24 三生三世</div>#}
{#                        <p>detail{{ questions }}</p>#}
{#                    </div>#}
{#                </a>#}
{#                </li>#}


                <li style="padding-left: 0px; padding-right: 10px; box-shadow: rgba(0, 0, 0, 0.5) 0px 0px 0px 0px;">
                    <span class="glyphicon glyphicon-leaf" aria-hidden="true"></span>
                    <a href="#">username</a>
                    <br>
                    <a href="#">title</a>
                    <span class="badgs">creat_time</span>
                    <p>detail{{ questions }}</p>
                </li>



            </ul>
</div