期末作品检查

时间：2018-01-06 21:08:42 阅读：239 评论：0 收藏：0 [点我收藏+]

标签：efault trap secret class 简单 tac 主程 alc copyright

1.个人学期总结

本人在这学期中学习了管理信息系统这门科目，这门科目主要讲解了基于Python的Flask框架web建设项目。Python，是一种面向对象的解释型计算机程序语言，由荷兰人于1989年发明，第一个公开发行版发行于1991年。Python语言具有很多优点，首先，Python在设计上坚持了清晰划一的风格，这使得Python成为一门易读、易维护，并且被大量用户所欢迎的、用途广泛的语言。再者，Python的作者有意的设计限制性很强的语法，使得不好的编程习惯（例如if语句的下一行不向右缩进）都不能通过编译，其中很重要的一项就是Python的缩进规则。

在前期Python的基础课程中学习到了turtle库的基础练习、字符串的基本操作、凯撒密码、GDP格式化输出、99乘法表、中英文词频统计、和datetime处理日期和时间等等基础学习。

中期，开始学习用html元素制作web网页，观察常用网页的HTML元素，在实际的应用场景中，用已学的标签模仿制作。制作自己的导航条，认识css的盒子模型，用div等元素布局形成html文件。完成了登录与注册页面的html+css+js, 夜间模式的开启和关闭，制作网站网页共有元素的父模板html，包括顶部导航，中间区块划分，底部导航，底部说明等。汇总相关的样式形成独立的css文件，使用 js代码形成独立的js文件，形成完整的base.html+css+js。

后期，进行flask项目，理解flask项目主程序，使用装饰器，设置路径与函数之间的关系。加载静态文件，父模板的继承和扩展。连接mysql数据库，创建用户模型，通过用户模型，对数据库进行增删改查，完成登录、注册、发布评论等功能，继续对我们的项目进行完善。

完成以上步骤之后，一个网页就差不多完成了。但完成的网页是一个很简单的，所以希望在以后能制作出一个更完美的网页。

2.总结Python+Flask+MysqL的web建设技术过程，标准如下：

即是对自己所学知识的梳理
也可作为初学入门者的简单教程
也可作为自己以后复习的向导
也是一种向外展示能力的途径

Python+Flask+MysqL的web建设技术过程：

（1）注册页面的实现：

代码：

{% extends ‘base.html‘ %}

{% block title %}注册{% endblock %}

{% block head %}
    <link href="{{ url_for(‘static‘,filename=‘css/regist.css‘) }}" rel="stylesheet" type="text/css">
    <script src="{{ url_for(‘static‘,filename=‘js/regist.js‘) }}"></script>
{% endblock %}

{% block main %}
<div class="aa"style="opacity:0.8" >
    <div class="login" ><h2>注册</h2></div>
    <form action="{{ url_for(‘regist‘) }}"method="post">
    <div class="aa1" >
        用户名：<input id="name" type="text"placeholder="请输入用户名"name="username"><br>
        昵称：<input id="nickname" type="text"placeholder="昵称"name="nickname"><br>
        密码：<input id="password" type="password"placeholder="请输入密码"name="password"><br>
        再输密码：<input id="password1" type="password"placeholder="请再次输入密码"><br>

    </div>
        <div id="error_box"><br></div>
      <div class="aa2" >
         <button onclick="return myLogin()">注册</button>


<body background="http://p2.so.qhimgs1.com/bdr/_240_/t015907a1aac845650e.jpg"style="background-repeat:no-repeat;background-size: 100% 100%; background-attachment: fixed;">
</body>
    </div>
        </form>
</div>
{% endblock %}

（2）登陆页面：

代码：

{% extends ‘base.html‘ %}

{% block title %}登录{% endblock %}

{% block head %}
    <link href="{{ url_for(‘static‘,filename=‘css/login.css‘) }}" rel="stylesheet" type="text/css">
    <script src="{{ url_for(‘static‘,filename=‘js/login.js‘) }}"></script>
{% endblock %}
<body background="http://p0.so.qhmsg.com/bdr/_240_/t017089b71faaa7ce85.jpg"></body>

{% block main %}
<div class="aa" style="opacity:0.8">
    <div class="login" ><h2>登录</h2></div>
    <form action="{{ url_for(‘login‘) }}"method="post">
    <div class="aa1" >
        用户名：<input id="name" type="text"name=‘username‘placeholder="请输入用户名"><br>
        密码：<input id="password" type="password"name=‘password‘placeholder="请输入密码"><br>
        </div>
        <div id="error_box"><br></div>
      <div class="aa2" >
         <button onclick="myLogin()">登录</button>
         <button type="button" onclick=window.alert("是否取消登录！")>取消</button>
<body background="http://p0.so.qhimgs1.com/bdr/_240_/t01ebfe75930e0eb7a0.jpg"style="background-repeat:no-repeat;background-size: 100% 100%; background-attachment: fixed;"></body>

    </div>
        </form>
</div>

{% endblock %}

（3）首页页面：

技术分享图片

代码：

{% extends ‘base.html‘ %}
{% block title %}
    首页
{% endblock %}

{% block head %}

     <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" integrity="sha384-PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" crossorigin="anonymous">
       <link rel="stylesheet" type="text/css"href="../static/css/index.css">

{% endblock %}

{% block main %}


  <div class="card-body">


<div class="card" style="width:50rem; margin:0 auto;opacity:0.9">


{#    <li class="list-group-item"style="height:10rem">detail{{ question }}</li>#}
    <ul class="list-group list-group-flush">
{% for foo in questions %}

        <li class="list-group-item">
            <span class="icon" aria-hidden="true"></span>

            <br>

            <h3><a href="{{ url_for(‘detail‘,question_id=foo.id) }}">{{ foo.title }}</a></h3>

            <p>{{ foo.detail }}</p>
        <span class="badge"style="float:right">{{ foo.creat_time}}</span>

            <a href="{{ url_for(‘usercenter‘,user_id=foo.author.id,tag=1) }}">{{ foo.author.username}}</a>
            <br>
        评论：{{ foo.comments|length }}
        </li>

        {% endfor %}
    </ul>
</div>
  <br>
<div>
    <p><span style="font-size: 40px;color: blue;font-family: ‘Consolas‘, ‘Deja Vu Sans Mono‘, ‘Bitstream Vera Sans Mono‘, monospace";>浩瀚星空</span></p>
</div>

 <div>
        <div class="img">
            <a href="https://www.baidu.com/">
                <img src="https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1509806558937&di=e9f6b3da7e4525b5048761d321e7a334&imgtype=0&src=http%3A%2F%2Fimgsrc.baidu.com%2Fimage%2Fc0%253Dshijue1%252C0%252C0%252C294%252C40%2Fsign%3D9d0e654a05b30f242197e440a0fcbb36%2F43a7d933c895d1434bcc2a0879f082025aaf0767.jpg"></a>
            <div class="desc"><a href="https://www.baidu.com/">地球</a></div>
            </div>

         <div class="img">
            <a href="https://www.baidu.com/">
              <img src="https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1509806558936&di=f4549e6b6f694583b5e01832ae57ff79&imgtype=0&src=http%3A%2F%2Fimgsrc.baidu.com%2Fimage%2Fc0%253Dshijue1%252C0%252C0%252C294%252C40%2Fsign%3D7e5fc0351bdfa9ece9235e540ab99d76%2F8b13632762d0f7031d0337f502fa513d2697c562.jpg"></a>
            <div class="desc"><a href="https://www.baidu.com/">星云</a></div>
            </div>

    <div class="img">
            <a href="https://www.baidu.com/">
              <img src="https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1509806558935&di=01d805549265c8b439c92ed817f2664d&imgtype=0&src=http%3A%2F%2Fimgsrc.baidu.com%2Fimage%2Fc0%253Dshijue1%252C0%252C0%252C294%252C40%2Fsign%3D1fd11f0e9716fdfacc61ceaddce6e621%2Fae51f3deb48f8c542cd0210a30292df5e0fe7f90.jpg"></a>
            <div class="desc"><a href="https://www.baidu.com/">璀璨星空</a></div>
            </div>
  <div class="img">
            <a href="https://www.baidu.com/">
             <img src="https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1509806558935&di=b77b1b7fb70e8474b8a317fd70ea71ce&imgtype=0&src=http%3A%2F%2Fimgsrc.baidu.com%2Fimage%2Fc0%253Dshijue1%252C0%252C0%252C294%252C40%2Fsign%3D2820c0958dd6277ffd1f3a7b40517545%2F9f2f070828381f304605d987a3014c086e06f084.jpg"></a>
            <div class="desc"><a href="https://www.baidu.com/">星轨</a></div>
            </div>
    </div>
     <br>





<div class="clearfloat" style="text-align: center">
      <img src="https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1509806558937&di=e9f6b3da7e4525b5048761d321e7a334&imgtype=0&src=http%3A%2F%2Fimgsrc.baidu.com%2Fimage%2Fc0%253Dshijue1%252C0%252C0%252C294%252C40%2Fsign%3D9d0e654a05b30f242197e440a0fcbb36%2F43a7d933c895d1434bcc2a0879f082025aaf0767.jpg">
      <img src="https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1509806558936&di=f4549e6b6f694583b5e01832ae57ff79&imgtype=0&src=http%3A%2F%2Fimgsrc.baidu.com%2Fimage%2Fc0%253Dshijue1%252C0%252C0%252C294%252C40%2Fsign%3D7e5fc0351bdfa9ece9235e540ab99d76%2F8b13632762d0f7031d0337f502fa513d2697c562.jpg">
      <img src="https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1509806558935&di=01d805549265c8b439c92ed817f2664d&imgtype=0&src=http%3A%2F%2Fimgsrc.baidu.com%2Fimage%2Fc0%253Dshijue1%252C0%252C0%252C294%252C40%2Fsign%3D1fd11f0e9716fdfacc61ceaddce6e621%2Fae51f3deb48f8c542cd0210a30292df5e0fe7f90.jpg">
      <img src="https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1509806558935&di=b77b1b7fb70e8474b8a317fd70ea71ce&imgtype=0&src=http%3A%2F%2Fimgsrc.baidu.com%2Fimage%2Fc0%253Dshijue1%252C0%252C0%252C294%252C40%2Fsign%3D2820c0958dd6277ffd1f3a7b40517545%2F9f2f070828381f304605d987a3014c086e06f084.jpg">

</div>

  </div>

{% endblock %}

（4）发布问答

技术分享图片

代码：

{% extends ‘base.html‘ %}

{% block title %}问答{% endblock %}

{% block head %}
    <link href="{{ url_for(‘static‘,filename=‘‘) }}" rel="stylesheet" type="text/css">
{% endblock %}

{% block main %}
       <br>

<section class="container">
    <div class="login" style="text-align: center;">

        <label for="ask">Question</label>
         <form action="{{ url_for(‘question‘) }}" method="post">

        <textarea style="width:330px" type="password" rows="3" id="ask"  name="title"></textarea>

    <br>
    <div>
        <label for="questionDetail">Detail</label>
        <br>
        <textarea  rows="5" style="width:330px"id="questionDetail" type="password" name="detail"></textarea>
    </div>
    <br>
    <input type="checkbox">check me

    <input  type="submit" name="commit" value="发布">
         </form>
 </div>
           </section>

{% endblock %}

（5）个人详情页面：

技术分享图片

代码：

{% extends ‘userbase.html‘ %}
{% block title %}
    个人信息页
{% endblock %}

{% block head %}

     <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" integrity="sha384-PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" crossorigin="anonymous">

{% endblock%}



{% block user %}





<div class="card" style="width:50rem; margin:0 auto">

<ul class="list-group list-group-flush" >

<h3>全部问答</h3>


{% for foo in user.questions %}

        <li class="list-group-item">
            <span class="icon" aria-hidden="true"></span>

            <br>

            <h3><img   src="../static/image/yezi.jpg" width="20"
                    height="20"> <a href="{{ url_for(‘detail‘,question_id=foo.id) }}">{{ foo.title }}</a></h3>

            <p>{{ foo.detail }}</p>
        <span class="badge"style="float:right">{{ foo.creat_time}}</span>
           <img   src="../static/image/touxiang.jpg" width="20"
                    height="20">
            <a href="{{ url_for(‘usercenter‘,user_id=foo.author.id) }}">{{ foo.author.username}}</a>
        </li>

        {% endfor %}

</ul>
</div>

<br>
<br>




<div class="card" style="width:50rem; margin:0 auto">
<ul class="list-group list-group-flush">
<h3>全部评论</h3>


{% for foo in user.comments %}

        <li class="list-group-item">
            <span class="icon" aria-hidden="true"></span>

            <br>

            <h3><img   src="../static/image/yezi.jpg" width="20"
                    height="20"> <a href="{{ url_for(‘detail‘,question_id=foo.id) }}">{{ foo.title }}</a></h3>

            <p>{{ foo.detail }}</p>
        <span class="badge"style="float:right">{{ foo.creat_time}}</span>
           <img   src="../static/image/touxiang.jpg" width="20"
                    height="20">
            <a href="">{{ foo.author.username}}</a>
        </li>

        {% endfor %}
    </ul>

</div>

<br>
<br>

   <div class="card" style="width:50rem; margin:0 auto">
<h3>{{ username }}个人信息</h3>
<ul class="list-group list-group-flush">


        <li class="list-group-item">
            <span class="icon" aria-hidden="true">
                用户：{{ user.username }}<br>
                编号：{{ user.id }}<br>
                昵称：{{ user.nickname }}<br>
                文章篇数：{{ user.questions|length }}
            </span>

        </li>


    </ul>

</div>








{% endblock %}

（6）个人用户父类模板代码：

{% extends ‘base.html‘ %}
{% block title %}
    个人中心
{% endblock %}
{% block head %}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" integrity="sha384-PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" crossorigin="anonymous">

{#    <style>#}
{#        .nav_ul li#}
{#            list-style:none;#}
{#            float: left;#}
{#            margin: 10px;#}
{#        #}
{#    </style>#}

{% endblock %}

{% block main %}
<div  style="width:50rem; margin:0 auto">
<ul class="list-group list-group-flush">
    <h2>{{ user.username }}</h2>
    </ul>
    <li role="presentation"class="btn btn-light"><a href="{{ url_for(‘usercenter‘,user_id=user.id,tag=‘1‘) }}">全部问答</a> </li>
    <li role="presentation"class="btn btn-light"><a href="{{ url_for(‘usercenter‘,user_id=user.id,tag=‘2‘) }}">全部评论</a> </li>
    <li role="presentation"class="btn btn-light"><a href="{{ url_for(‘usercenter‘,user_id=user.id,tag=‘3‘) }}">个人信息</a> </li>

</ul>
</div>
    {% block user %}
    {% endblock %}
{% endblock %}

（7）父类模板代码：

<!DOCTYPE HTML>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>{% block title %}首页{% endblock %}</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" integrity="sha384-PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" crossorigin="anonymous">

<script src="{{ url_for(‘static‘,filename=‘js/base.js‘) }}"></script>


{% block head %}{% endblock %}
<body id="mybody">
{#<nav class="navbar navbar-expand-lg navbar navbar-light"style="background-color:#e3f2fd">#}

    <nav class="navbar navbar-expand-lg navbar navbar-dark bg-blue"style="opacity:0.8">
        <div class="collapse navbar-collapse" id="navbarSupportedContent">
            <ul class="navbar-nav mr-auto">
                <li class="nav-item"><a class="navbar-brand"
                    href="{{ url_for(‘index‘) }}">首页&nbsp;&nbsp;&nbsp;&nbsp;</a></li>

                <li class="nav-item active"><a class="navbar-brand"
                    href="{{ url_for(‘question‘) }}">发布问答&nbsp;&nbsp;&nbsp;&nbsp;</a></li>

                <li class="nav-item active"><a class="navbar-brand"
                    href="http://www.astron.ac.cn/index.htm">中国天文网</a></li>

                <li class="nav-item active"><a class="navbar-brand"
                    href="http://www.dili360.com/cng/tag/list/6489.htm">国家地理网</a></li>

                 <li class="nav-item active"><a class="navbar-brand"
                    href="http://www.astronomy.com.cn/bbs/forum.php">天文论坛</a></li>




                <form action="{{url_for(‘search‘)}}" method="get" class="form-inline" >
                    <input name="q" class="form-control mr-sm-2" type="search"
                        placeholder="请输入关键字" >
                    <button class="btn btn-outline-success my-2 my-sm-0" type="submit">搜索</button>
                </form>
            </ul>

            <nav class="navbar navbar-expand-lg navbar navbar-dark bg-blue">
                {% if username %} <a class="navbar-brand" href="{{ url_for(‘usercenter‘,user_id=session.get(‘userid‘),tag=1) }}">{{ session.get(‘user‘)
                    }}&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</a>


                <a class="navbar-brand" href="{{ url_for(‘logout‘) }}">注销&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</a>


                    {% else %} <a class="navbar-brand" href="{{ url_for(‘login‘) }}">登陆&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</a>


                <a class="navbar-brand" href="{{ url_for(‘regist‘) }}">注册&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</a>


                {% endif %}
            </nav>
        </div>
    </nav>
<body background="http://p0.so.qhimgs1.com/bdr/_240_/t01ebfe75930e0eb7a0.jpg"style="background-repeat:no-repeat;background-size: 100% 100%; background-attachment: fixed;">

    {% block main %} {% endblock %}
      <div id="footer">

                <div class="copyRight" style="text-align: center">
                    Copyright ?xulishuai版权所有
                </div>
            </div>

</body>
</body>
</html>

（8）config.py代码：

import  os
SECRET_KEY = os.urandom(24)


SQLALCHEMY_DATABASE_URI = ‘mysql+pymysql://root:123456@127.0.0.1:3306/misdb?charset=utf8‘
SQLALCHEMY_TRACK_MODIFICATIONS = False

（9）tianwen.py代码：

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

app = Flask(__name__)
app.config.from_object(config)

db = SQLAlchemy(app)

#登录的数据库
class User(db.Model):
    __tablename__ = ‘user‘
    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))
db.create_all()


#问题页的数据库
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.id‘))
    author=db.relationship(‘User‘,backref=db.backref(‘questions‘))
db.create_all()

class Comment(db.Model):
    __tablename__ = ‘comment‘
    id = db.Column(db.Integer, primary_key=True, autoincrement=True)
    author_id = db.Column(db.Integer, db.ForeignKey(‘user.id‘))
    question_id=db.Column(db.Integer, db.ForeignKey(‘question.id‘))
    detail = db.Column(db.Text, nullable=False)
    creat_time = db.Column(db.DateTime, default=datetime.now)
    question=db.relationship(‘Question‘,backref=db.backref(‘comments‘,order_by=creat_time.desc))
    author = db.relationship(‘User‘, backref=db.backref(‘comments‘))

db.create_all()






# user=User(username=‘mis1‘,password=‘11111‘)
# db.session.add(user)
# db.session.commit()




@app.route(‘/‘)
def base():
    return render_template(‘base.html‘)

# 调用数据库把用户评论放在首页
@app.route(‘/index/‘)
def index():
    context = {
            ‘questions‘:Question.query.order_by(‘-creat_time‘).all()

        }

    return render_template(‘index.html‘,**context)

@app.route(‘/login/‘,methods=[‘GET‘,‘POST‘])
def login():
    if request.method == ‘GET‘:
        return render_template(‘login.html‘)
    else:
        usern = request.form.get(‘username‘)
        passw = request.form.get(‘password‘)
        user = User.query.filter(User.username == usern).first()
        if user:
            if user.password==passw:
                session[‘user‘] = usern
                session[‘userid‘] = user.id
                session.permanent = True
                return redirect(url_for(‘base‘))
            else:
                return u‘password error‘
        else:
            return u‘password is not existed‘



@app.route(‘/regist/‘,methods=[‘GET‘,‘POST‘])
def regist():
    if request.method==‘GET‘:
        return render_template(‘regist.html‘)
    else:
        usern=request.form.get(‘username‘)
        passw=request.form.get(‘password‘)
        nickn=request.form.get(‘nickname‘)
        user=User.query.filter(User.username==usern).first()
        if user:
            return u‘username existed‘
        else:
            user=User (username=usern,password=passw,nickname=nickn)
            db.session.add(user)
            db.session.commit()
            return redirect(url_for(‘login‘))


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#发布前登录，python装饰器
def question():
    if request.method==‘GET‘:
        return render_template(‘question.html‘)
    else:
        title = request.form.get(‘title‘)
        detail = request.form.get(‘detail‘)
        author_id = User.query.filter(User.username == session.get(‘user‘)).first().id
        question = Question(title=title, detail=detail, author_id=author_id)
        db.session.add(question)
        db.session.commit()
        return redirect(url_for(‘index‘))

    # 评论页的详细页
@app.route(‘/detail/<question_id>‘)
def detail(question_id):

    quest = Question.query.filter(Question.id == question_id).first()
    return render_template(‘detail.html‘, ques=quest)


#评论功能
@app.route(‘/comment/‘,methods=[‘POST‘])
@loginFirst#发布前登录，python装饰器
def comment():
    detail = request.form.get(‘fabu‘)
    author_id = User.query.filter(User.username == session.get(‘user‘)).first().id
    quest_id =request.form.get(‘question_id‘)
    pinglun = Comment(question_id=quest_id,detail=detail, author_id=author_id)
    db.session.add(pinglun)
    db.session.commit()
    return redirect(url_for(‘detail‘,question_id=quest_id))

#个人信息页
@app.route(‘/usercenter/<user_id>/<tag>‘)
@loginFirst#发布前登录，python装饰器
def usercenter(user_id,tag):
    user=User.query.filter(User.id== user_id).first()
    context={
      ‘user‘:user
    }

    if tag==‘1‘:
        return render_template(‘user1.html‘,**context)
    elif tag==‘2‘:
        return render_template(‘user2.html‘,**context)
    else:
        return render_template(‘user3.html‘,**context)



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



@app.route(‘/search/‘)
def search():
    qu=request.args.get(‘q‘)
    ques=Question.query.filter(or_(Question.title.contains(qu),Question.detail.contains(qu))).order_by(‘-creat_time‘)
    return render_template(‘index.html‘, questions=ques)



@app.route(‘/logout/‘)
def logout():
    session.clear()
    return redirect(url_for(‘index‘))



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

以上就是Python+Flask+MysqL的web建设技术过程，读者可以根据自己的需求修改。

期末作品检查

标签：efault trap secret class 简单 tac 主程 alc copyright

原文地址：https://www.cnblogs.com/acef/p/8215099.html

踩

(0)

评论一句话评论（0）

分享档案

更多>

2021年07月29日 (22)
2021年07月28日 (40)
2021年07月27日 (32)
2021年07月26日 (79)
2021年07月23日 (29)
2021年07月22日 (30)
2021年07月21日 (42)
2021年07月20日 (16)
2021年07月19日 (90)
2021年07月16日 (35)

周排行