评论列表显示及排序，个人中心显示

1. 显示所有评论
   {% for foo in ques.comments %}

   <ul class="list-group"style="margin:10px">
          {%for foo in ques.comments%}
          <li class="list-group-item">
              <span class="glyphicon lgyphicon-heart-empty" aira-hidden="true"></span>
              <a href="{{url_for('usercenter',user_id=foo.author_id)}}">{{foo.author.username}}</a>
              <span class="badge">{{foo.create_time}}</span>
              <p>{{foo.detail}}</p>
          </li>
          {%endfor%}
      </ul>
   {% endblock %}

2. 所有评论排序
   uquestion = db.relationship('Question', backref=db.backref('comments', order_by=creat_time.desc))

   question=db.relationship('Question',backref=db.backref('comments',order_by=create_time.desc))

   
   
   
3. 显示评论条数
   {{ ques.comments|length }}

    <h4>评论:({{ ques.comments|length }})</h4>

   
   
   
4. 完成个人中心

1.个人中心的页面布局（html文件及相应的样式文件）

2.定义视图函数def usercenter(user_id):

3.向前端页面传递参数

4.页面显示相应数据

发布的全部问答

发布的全部评论

个人信息

5.各个页面链接到个人中心

@app.route('/usercenter/<user_id>')
@loginFirst
def usercenter(user_id):
    user=User.query.filter(User.id==user_id).first()
    context={
        'username':user.username,
        'questions':user.question,
        'comments':user.comments
    }
    return render_template('usercenter.html',**context)

{% extends 'base.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="bagde"></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 href="{{url_for('usercenter',user_id=foo.author_id)}}">{{foo.author.username}}</a>
            <span class="badge">{{foo.create_time}}</span>
            <p>文章标题：{{ foo.title }}</p>
            <p>文章内容：{{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="bagde"></span></small>
    </h3>
    <ul class="list-group" style="">
        {%for foo in comments%}
        <li class="list-group-item">
            <span class="glyphicon glyphicon-heart-empty" aria-hidden="true"></span>
            <a href="{{url_for('usercenter',user_id=foo.author_id)}}">{{foo.author.username}}</a>
            <span class="badge">{{foo.create_time}}</span>
            <p>文章标题：{{ foo.title }}</p>
            <p>评论内容：{{foo.detail}}</p>
        </li>
        {% endfor %}
    </ul>
</div>

<div class="page-header" style="">
    <h3> <span class="glyphicon glyphicon-user" aria-hidden="true"></span>{{username}}<br><small>个人信息<span class="bagde"></span></small>
    </h3>
    <ul class="list-group">
        <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">评论条数：{{ questions|length }}</li>

    </ul>
</div>

{% endblock %}