期末作品检查
Posted 20150605096谢阳
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个人学期总结：
学习python，首先要配置好环境，安装好软件，
一开始老师教turtle利用条件、循环、函数定义画各种图形如，五角星、同心圆、太阳花、中国国旗等；然后学习了字符串的基本操作，输出代码计算后的结果，还有凯撒密码、GDP格式化输出、九九乘法表；利用python进行英文词汇统计，组合数据类型练习等， 个人有一部分心得，
1.Python对于代码格式要求相当严格，通过对于缩进的距离来判断代码是否处于同一个代码块。该开始学习的时候经常由于缩进出错造成代码错误。
2.1.python中双引号和单引号作用一样,print \'hello World\'和print "hello World"是一样的。
3.python,使用变量,不需要定义类型,只要赋初值就行,和javascript中定义变量有点类似,只是更简单了,连var都不需要
4.python中的控制语句,if,while,for.值得注意的是条件都没有括号,条件后必须加:,while也可以有else语句
5.python 定义函数的方法
def fun_name(parameter1,parameter2...):
6.python中的数据结构有列表,元组,字典.其定义如下
mylist = [\'apple\',\'banana\',\'orange\']列表
zoo = (\'aaa\',\'bbb\',\'ccc\')元组
dic = {\'zhang\':\'san\',
\'li\':\'si\',\'wang\':\'wu\'}
总结Python+Flask+mysql的web建设技术过程：
导入包：
from flask import Flask from flask import render_template, request, redirect, url_for, session from functools import wraps from datetime import datetime from werkzeug.security import check_password_hash, generate_password_hash
建表
class User(db.Model): __tablename__=\'user\' id = db.Column(db.Integer, primary_key=True, autoincrement=True) username = db.Column(db.String(100), nullable=False) _password = db.Column(db.String(500), nullable=False)#内部使用 nickname = db.Column(db.String(20), nullable=True) class Ques(db.Model): __tablename__=\'question\' id = db.Column(db.Integer, primary_key=True, autoincrement=True) author_id = db.Column(db.Integer, db.ForeignKey(\'user.id\')) author = db.relationship(\'User\', backref=db.backref(\'question\')) title = db.Column(db.String(20), nullable=False) detail = db.Column(db.Text, nullable=False) create_time = db.Column(db.DateTime, default=datetime.now) 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\')) question = db.relationship(\'Ques\', backref=db.backref(\'comment\')) author = db.relationship(\'User\', backref=db.backref(\'comment\')) detail = db.Column(db.Text, nullable=False) create_time = db.Column(db.DateTime, default=datetime.now)
建表如下：
建立一个父模版：
包含导航条
<meta charset="UTF-8"> <title> 灵魂有香气的女子 {% block title %}{% endblock %}</title> <link rel="stylesheet" href="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/css/bootstrap.min.css"> <script src="http://cdn.static.runoob.com/libs/jquery/2.1.1/jquery.min.js"></script> <script src="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/js/bootstrap.min.js"></script> {% block head %} {% endblock %} </head> <link rel="stylesheet" type="text/css" href="{{url_for(\'static\',filename=\'css/style.css\') }}"> <nav class="navbar navbar-default" role="navigation"> <div class="container-fluid"> <div class="navbar-header"> <a class="navbar-brand" href="{{ url_for(\'index\') }}">首页</a> </div> <form class="navbar-form navbar-left" action="{{ url_for(\'search\') }}" method="get" role="search"> <div class="form-group"> <input type="text" class="form-control" name="search" placeholder="灵魂有香气的女子"> </div> <button type="submit" class="btn btn-default">搜索</button> </form> <div class="navbar-footer"> <ul class="nav nav-tabs" > {% if username %} <li><a href="{{ url_for(\'usercenter\',user_id=userid,tag=\'1\') }}">{{ username }}</a></li> <li><a href="{{ url_for(\'loginout\') }}">注销</a></li> {% else %} <li><a href="{{ url_for(\'login\') }}">登录</a></li> <li><a href="{{ url_for(\'register\') }}">注册</a></li> {% endif %} <li><a href="{{ url_for(\'fabu\') }}">发布</a></li> </ul> </div>
子模版继承：
{% extends \'base.html\' %}
{% block title %}登录{% endblock %}
{% block head %}{% endblock %}
{% block body %}{% endblock %}
注册页面：
<div class="col-md-6 column"> <form class="form-horizontal" role="form" action="{{ url_for(\'register\')}}"method="post"> <div class="form-group"> <label for="inputEmail3" class="col-sm-2 control-label">帐号：</label> <div class="col-sm-10"> <input type="text" class="form-control" id="username" name="username" /> </div> </div> <div class="form-group"> <label for="inputEmail3" class="col-sm-2 control-label">昵称：</label> <div class="col-sm-10"> <input type="text" class="form-control" id="nickname" name="nickname" /> </div> </div> <div class="form-group"> <label for="inputPassword3" class="col-sm-2 control-label">密码：</label> <div class="col-sm-10"> <input type="password" class="form-control" id="password" name="password" /> </div> </div> <div class="form-group"> <label for="inputPassword3" class="col-sm-2 control-label">确认密码：</label> <div class="col-sm-10"> <input type="password" class="form-control" id="inputPassword3" /> </div> </div> <div class="form-group"> <div class="col-sm-offset-2 col-sm-10"> <button type="submit" class="btn btn-default">注册</button> </div> </div>
function fozhuce() { var oUname = document.getElementById("uname"); var oError = document.getElementById("error_box"); var oUpass = document.getElementById("upass"); var oUpass1 = document.getElementById("upass1"); var isError = true; oError.innerHTML = "<br>"; if (oUname.value.length < 6 || oUname.value.length > 20) { oError.innerHTML = "用户名要6-20位"; isError = false; return isError; }else if(oUname.value.charCodeAt(0)>=48 &&(oUname.value.charCodeAt(0)<=57)){ oError.innerHTML="首位不能为数字"; isError = false; return isError; }else for (var i=0;i<oUname.value.length;i++){ if((oUname.value.charCodeAt(i)<48)||(oUname.value.charCodeAt(i)>57)&&(oUname.value.charCodeAt(i)<58)&&(oUname.value.charCodeAt(i)>97)){ oError.innerHTML="只能为数字和字母"; isError = false; return isError; } }if (oUpass.value.length < 6 || oUpass.value.length > 20) { oError.innerHTML = "密码要6-20位"; isError = false; return isError; }else if(oUpass.value!=oUpass1.value) { oError.innerHTML = "设置密码和验证密码不一致"; isError = false; return isError; } return ture; }
登录页面：
<label for="inputEmail3" class="col-sm-2 control-label">帐号:</label> <div class="col-sm-10"> <input type="text" style="width: 300px" class="form-control" id="username" name="username"/> </div> </div> <div class="form-group"> <label for="inputPassword3" class="col-sm-2 control-label">密码:</label> <div class="col-sm-10"> <input type="password" style="width: 300px" class="form-control" id="password" name="pass"/> </div> </div> <div class="form-group" align="center"> <div class="col-sm-offset-2 col-sm-10"> <button type="submit" class="btn btn-default" onclick=" return login()">登录</button> </div> </div> <div align="center"> <div id="error_box"></div> <br>
1.读取表单数据
2.查询数据库
（1）用户名密码对：
跳转到首页
（2）用户名密码不对：
提示相应错误。
@app.route(\'/login\',methods=[\'GET\',\'POST\']) def login(): if request.method == \'GET\': return render_template(\'login.html\') else: username = request.form.get(\'username\') password = request.form.get(\'pass\') user = User.query.filter(User.username == username).first() # 判断用户名是否存在 if user: if user.check_password(password): session[\'user\'] = username session[\'userid\']=user.id session.permanent = True return redirect(url_for(\'index\')) else: return u\'密码错误\' else: return u\'账号不存在\'
登录后更新导航：
用上下文处理器app_context_processor定义函数
- 获取session中保存的值
- 返回字典
@app.context_processor def context(): username=session.get(\'user\') userid=session.get(\'userid\') if username: return {\'username\': username,\'userid\':userid} else: return {}
注销功能
-
1.清除session
2.跳转
@app.route(\'/loginout\') def loginout(): session.clear() return redirect(url_for(\'index\'))
问答平台及详情页：
{% extends \'base.html\' %} {% block title %}发布详情{% endblock %} {% block head %}{% endblock %} {% block body %} <div class="container"> <div class="row clearfix"> <div class="col-md-3 column"> </div> <div class="col-md-6 column"> <h3 align="center">{{ quest.title }}</h3> <div align="center" style="font-weight: 900 "> {# <span style="color: red">作者：{{ quest.author.username }} 时间:{{ quest.creat_time }}</span>#} <span class="badge">作者：{{ quest.author.nickname }} 发布时间:{{ quest.create_time }}</span> </div> <div class="panel panel-default"> <div class="panel-body" style="font-size:large"> {{ quest.detail }} </div> </div> <hr> <h4>评论区</h4> {% for foo in comments %} <div class="list-group"> <a href="" class="list-group-item">{{ foo.author.nickname }} <span class="badge">发布时间:{{ foo.create_time }}</span></a> <div class="list-group-item"> <p class="list-group-item-text"> {{ foo.detail }} </p> </div> </div> {% endfor %} <h3> 发布评论({{ comments|length }}) </h3> <form action="{{ url_for(\'comment\') }}" method="post"> <div class="form-group"> <textarea type="text" class="form-control" id="detail" name="detail" cols="50" rows="5"/></textarea> </div> <button type="submit" class="btn btn-default">发布</button> </form> </div> </div> <div class="col-md-3 column"> </div> </div> </div> {% endblock %}{% extends \'user.html\' %} {% block user %} <hr> <h3 align="center"> <small>全部问答</small> </h3> <ul class="list-unstyled"> {% for foo in questions %} <li class="list-group-item"> <span class="glyphicon glyphicon-user"></span><a>{{ foo.author.username }}</a> <p><a href="{{ url_for(\'detail\',question_id=foo.id)}}">标题：{{ foo.title }}</a></p> <span class="badge pull-right">{{ foo.create_time }}</span> <p>问答内容：{{ foo.detail }}</p> <br> </li> {% endfor %} </ul> {% endblock %} -
个人中心：个人中心父模板 + 全部评论 + 全部问答 + 个人信息
{% extends \'user.html\' %} {% block user %} <hr> <h3 align="center"> <small>个人信息</small> </h3> <ul class="list-group"> <li class="list-group-item" style="background-color: antiquewhite"><span class="glyphicon glyphicon-user"></span>用户:{{ username }}</li> <li class="list-group-item" style="background-color: wheat">昵称:{{ nickname }}</li> <li class="list-group-item" style="background-color: aquamarine">文章篇数:{{ questions|length }}</li> </ul> {% endblock %}{% extends \'base.html\' %} {% block title %}个人中心{% endblock %} {% block head %}{% endblock %} {% block body %} <div class="container"> <div class="row clearfix"> <div class="col-md-1 column"> </div> <div class="col-md-10 column"> <div class="tabbable" id="tabs-795847"> <ul class="nav nav-tabs"> <li role="presentation"> <a href="{{ url_for(\'usercenter\',user_id = username_id,tag=\'2\') }}">全部问答</a> </li> <li role="presentation"> <a href="{{ url_for(\'usercenter\',user_id = username_id,tag=\'3\') }}">全部评论</a> </li> <li role="presentation"> <a href="{{ url_for(\'usercenter\',user_id = username_id,tag=\'1\')}}" >个人中心</a> </li> </ul> {% block user %}{% endblock %} </div> </div> <div class="col-md-1 column"> </div> </div> </div> {% endblock %} -
密码保护：更新User对象，设置对内的_password， 编写对外的password
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(200),nullable=False) #内部使用 @property def password(selfs): #外部使用，取值 return self._password @password.setter def password(self,row_password): #外部使用，赋值 self._password=generate_password_hash(row_password)
- 登陆验证
@app.route(\'/denglu/\', methods=[\'GET\', \'POST\']) def denglu(): if request.method == \'GET\': return render_template(\'dl.html\') else: username = request.form.get(\'username\') password = request.form.get(\'password\') user = User.query.filter(User.username == username).first() # 判断用户名是否存在 if user: if user.check_password(password): session[\'user\'] = username session[\'id\'] = user.id session.permanent = True return redirect(url_for(\'shouye\')) else: return \'密码错误\' else: return \'此用户不存在\'
密码验证
def check_password(self,row_password): result=check_password_hash(self._password,row_password) return result
- 发布评论