个人中心标签页导航

1. 新页面userbase.html,用<ul ><li role="presentation"> 实现标签页导航。
   <ul class="nav nav-tabs">
     <li role="presentation"><a href="#">Home</a></li>
     <li role="presentation"><a href="#">Profile</a></li>
     <li role="presentation"><a href="#">Messages</a></li>
   </ul>
   

   <ul class="nav_ul">
           <li role="presentation"><a href="#">Questions</a> </li>
           <li role="presentation"><a href="#">Comments</a> </li>
           <li role="presentation"><a href="#">Info</a> </li>
       </ul>

2. 让userbase.html继承base.html。
   重写title,head,main块.
   将上述<ul>的样式放在head块，<ul>放在main块中.
   定义新的块user。

   {% extends'base.html' %}
   
   {% block title %}
       个人中心
   {% endblock %}
   
   {% block head %}
       <style>
           .nav_ul li{
               list-style: none;
               float: left;
               margin: 10px;
           }
       </style>
   {% endblock %}
   
   {% block main %}
       <div class="list-container">
       <h1 style="text-align: center">{{ user.username }}</h1>
           <hr>
       <ul class="nav_ul">
           <li role="presentation"><a href="#">Questions</a> </li>
           <li role="presentation"><a href="#">Comments</a> </li>
           <li role="presentation"><a href="#">Info</a> </li>
       </ul>
       </div>
   
   
       {% block user %}{% endblock %}
   {% endblock %}

   
   
   
3. 让上次作业完成的个人中心页面，继承userbase.html，原个人中心就自动有了标签页导航。

   {% extends 'userbase.html' %}

   
   
   
4. 制作个人中心的三个子页面，重写userbase.html中定义的user块，分别用于显示问答、评论、个人信息。

   {% extends'userbase.html' %}
   
   {% block user %}
       <div class="page-header">
       <h3>全部问答</h3>
       <br>
           <ul class="list-group" style="background-size: contain">
               {% for foo in user.question %}
               <li class="list-group-item">
                   <span class="glyphicon glyphicon-leaf" aria-hidden="true"></span>
                   <a href="#" target="_blank">{{ foo.author.username }}</a>
                   <span class="badge">发布时间：{{ foo.create_time }}</span>
                   <p style="text-indent: 18px">{{ foo.detail }}</p>
               </li>
               {% endfor %}
           </ul>
       </div>
   {% endblock %}

   {% extends'userbase.html' %}
   
   {% block user %}
       <div class="page-header">
           <h3>全部评论</h3>
       <br>
           <ul class="list-group" style="background-size: contain">
               {% for foo in user.comments %}
               <li class="list-group-item">
                   <span class="glyphicon-leaf" aria-hidden="true"></span>
                   <a href="#" target="_blank">{{ foo.author.username }}</a>
                   <span class="badge">发布时间：{{ foo.creat_time }}</span>
                   <p style="text-indent: 18px">{{ foo.detail }}</p>
               </li>
               {% endfor %}
           </ul>
       </div>
   {% endblock %}

   {% extends'userbase.html' %}
   
   {% block user %}
       <div class="page-header">
           <h3>个人信息</h3>
           <br>
           <ul class="list-group">
               <li class="list-group-item">用户：{{ user.username }}</li>
               <li class="list-group-item">编号：{{ user.id }}</li>
               <li class="list-group-item">昵称：{{ user.nickname }}</li>
               <li class="list-group-item">文章篇数：</li>
           </ul>
       </div>
   {% endblock %}

   
   
   
5. 思考 如何实现点标签页导航到达不同的个人中心子页面。