三十四、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 herf="#">Questions</a></li>
        <li role="presentation"><a herf="#">Comments</a></li>
        <li role="presentation"><a herf="#">Information</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 %}
    <ul class="nav_ul">
        <li role="presentation"><a herf="#">Questions</a></li>
        <li role="presentation"><a herf="#">Comments</a></li>
        <li role="presentation"><a herf="#">Information</a></li>
    </ul>

    {% 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' %}
{% block title %}个人中心{% endblock %}

{% block main %}

 <div class="page-header">
       <h3><span class="glyphicon glyphicon-user" aria-hidden="true"></span> {{ username }}<br><small>全部问答<span class="badge"></span> </small></h3>
       <ul class="list-group" style="...">
           {% for foo in questions %}
              <li class="list-group-item">
                  <span class="glyphicon glyphicon-heart-empty" aria-hidden="true"></span>
                  <a herf="#">{{ foo.author.username }}</a>
                  <span class="badge">{{ foo.creat_time }}</span>

                  <p style="...">{{ foo.detail }}</p>
              </li>
           {% endfor %}
       </ul>

   </div>

   <div class="page-header"...>
       <h3><span class="glyphicon glyphicon-user" aria-hidden="true"></span> {{ username }}<br><small>全部评论<span class="badge"></span> </small></h3>
       <ul class="list-group" style="...">
           {% for foo in questions %}
              <li class="list-group-item">
                  <span class="glyphicon glyphicon-heart-empty" aria-hidden="true"></span>
                  <a herf="#">{{ foo.author.username }}</a>
                  <span class="badge">{{ foo.creat_time }}</span>

                  <p style="...">{{ foo.detail }}</p>
              </li>
           {% endfor %}
       </ul>

   </div>

    <div class="page-header"...>
        <h3><span class="glyphicon glyphicon-user" aria-hidden="true"></span> {{ username }}<br><small>全部评论<span class="badge"></span> </small></h3>
        <ul class="list-group" style="...">

            <li class="list-group-item">用户：{{ username }}</li>
            <li class="list-group-item">编号：</li>
            <li class="list-group-item">昵称：</li>
            <li class="list-group-item">文章篇数：</li>

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

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 'usercenter.html' %}

{% block user %}
<div class="page-header">
<span class="glyphicon glyphicon-info-sign" aria-hidden="true">全部问答</span>
<ul class="list-group"></ul>
</div>

{% endblock %}

{% extends 'usercenter.html' %}

{% block user %}
    <div class="page-header">
    <span class="glyphicon glyphicon-info-sign" aria-hidden="true">全部评论</span>
    <ul class="list-group"></ul>
    </div>

{% endblock %}

{% extends 'usercenter.html' %}

{% block user %}
    <div class="page-header">
    <span class="glyphicon glyphicon-info-sign" aria-hidden="true">个人信息</span>
    <ul class="list-group"></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。