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>
        <p style="font-weight: 600;font-size: 16.5px">Comment[{{ question.comments|length }}]</p>
        <div>
            {% for foo in question.comments %}
            <li>
                <img src="{{ url_for('static',filename='image/body.png') }}">
                <a href="{{ url_for('usercenter',user_id=foo.author_id) }}">{{ foo.author.username }}</a>
                <span>{{ foo.creat_time }}</span><br>
                <p>{{ foo.detail }}</p>
            </li>
            {% endfor %}
        </div>
    </ul>

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=creat_time.desc))

3.显示评论条数
{{ ques.comments|length }}

<p style="font-weight: 600;font-size: 16.5px">Comment[{{ question.comments|length }}]</p>

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={
        'user':user
    }
    return render_template('center.html',**context)

{% extends 'base.html' %}

{% block title %}Center{% endblock %}

{% block head %}
    <link href="{{ url_for('static',filename='CSS/center.css') }}" rel="stylesheet" type="text/css">
{% endblock %}

{% block main %}
<div class="center">
    <h2><a href="{{ url_for('usercenter',user_id=user.id) }}"> {{ user.username }}</a></h2>
    <ul>
        <p style="font-weight: 600;font-size: 16.5px">All Questions And Answers</p>
        <div class="question">
            {% for foo in user.question %}
            <li>
                <img src="{{ url_for('static',filename='image/body.png') }}">
                <a href="#">{{ foo.author.username }} </a>
                <span>{{ foo.creat_time }}</span><br>
                <a class="title" href="{{ url_for('detail',question_id=foo.id) }}">{{ foo.title }}</a><br>
                <p>{{ foo.detail }}</p>
            </li>
            {% endfor %}
        </div>
    </ul>
    <br><hr>

    <ul>
        <p style="font-weight: 600;font-size: 16.5px">ALL Comments</p>
        <div>
            {% for foo in user.comments %}
            <li>
                <img src="{{ url_for('static',filename='image/body.png') }}">
                <a href="#">{{ foo.author.username }} </a>
                <span>{{ foo.creat_time }}</span><br>
                <p>{{ foo.detail }}</p>
            </li>
            {% endfor %}
        </div>
    </ul>
    <br><hr>

    <ul>
        <p style="font-weight: 600;font-size: 16.5px">Personal Information</p>
        <div class="info">
            <li><p>Username：{{ user.username }}</p></li>
            <li><p>Id：{{ user.id }}</p></li>
            <li><p>Number of articles：{{ user.question|length }}</p></li>
        </div>
    </ul>
    <br>
</div>
{% endblock %}