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 %}
   

   {# 评论列表#}
       <h4>评论({{ questions.comments|length }})</h4>
       <ul class="new-list" style="margin: 10px">
           {% for foo in  questions.comments %}
               <li class="list-group-item">
                   <span class="glyphicon glyphicon-heart-empty" aria-hidden="true"></span>
                   <a href="{{ url_for('usercenter',user_id=foo.auhtor.id) }}">{{ foo.author.username }}</a>
                   <span class="badge">{{ foo.create_time }}</span>
                   <p>{{ foo.detail }}</p>
               </li>
           {% endfor %}
       </ul>

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

   questions=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({{ questions.comments|length }})</h4>

4. 完成个人中心

{% extends'base.html' %}

{% block title %}个人中心{% endblock %}
{% block head %}
    <link rel="stylesheet" type="text/css" href="{{ url_for('static',filename='css/usercenter.css') }}">
{% 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">
        {% 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>{{ 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">
        {% 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>{{ foo.detail }}</p>

            </li>
        {% endfor %}
    </ul>
    </div>

    <div class="page-header">
    <h3><span class="glyphicon glyphicon-user" aria-hidden="true"></span>{{ username }}<br><small>个人信息<span class="badge"></span></small></h3>
    <ul class="list-group">
        <li class="list-group-item">用户：{{ username }}</li>
        <li class="list-group-item">编号：{{ id }}</li>
        <li class="list-group-item">昵称：{{ nickname }}</li>
        <li class="list-group-item">评论次数：{{ comments|length }}</li>

    </ul>
    </div>

{% endblock %}

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):

#用户中心页
@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.questions,
        'comments':user.comments
    }
    return render_template('usercenter.html',**context)

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

首页运行结果：

评论页运行结果：

个人中心页运行结果：