从首页问答标题到问答详情页

主PY文件写视图函数，带id参数。

@app.route('/detail/<question_id>')
def detail(question_id):
quest =
return render_template('detail.html', ques = quest)

1 #详情页
2 @app.route('/detail/<questions_id>')
3 def detail(questions_id):
4     questions=Question.query.filter(Question.id==questions_id).first()
5     return render_template('detail.html',questions=questions)

首页标题的标签做带参数的链接。
1. {{ url_for('detail',question_id = foo.id) }}

 1 {% block main %}
 2     <p>{{ username }} contextx</p>
 3     <ul class="new-list">
 4         {% for foo in questions %}
 5             <li class="list-group"
 6                 style="padding-left: 0px; padding-right: 10px; box-shadow: rgba(0, 0, 0, 0.498039) 0px 0px 0px 0px;">
 7                 <span class="glyphicon glyphicon-leaf" aria-hidden="true"></span>
 8                 <a href="#">{{ foo.author.username }}</a><br>
 9                 <a href="{{ url_for('detail',questions_id=foo.id) }}">{{ foo.title }}</a>{#链接到相关详情页#}
10                 <span class="badge" >{{ foo.create_time }}</span>
11                 <p>{{ foo.detail }}</p>
12             </li>
13         {% endfor %}
14     </ul>
15 {% endblock %}

在详情页将数据的显示在恰当的位置。
{{ ques.title}}
{{ ques.id }}{{ ques.creat_time }}

{{ ques.author.username }}
{{ ques.detail }}

 1 {% extends'base.html' %}
 2 
 3 {% block title %}问答详情{% endblock %}
 4 {% block head %}
 5     <link rel="stylesheet" type="text/css" href="{{ url_for('static',filename='css/detail.css') }}">
 6 {% endblock %}
 7 
 8 {% block main %}
 9     <div class="page-header">
10     <h3>题目：{{ questions.title }}<br><small>作者：{{ questions.author.username }} <span class="badge">发布时间：{{ questions.create_time }}</span></small></h3>
11     </div>
12     <p class="lead">详情：{{ questions.detail }}</p><br>
13 
14     {#发布评论#}
15     <form action="{{ url_for('questions') }}" method="post">
16         <div class="form-group">
17             <textarea name="new_comment" class="form-control" rows="3" id="new-comment"
18                       placeholder="请写下你的评论"></textarea>
19             <input type="hidden" name="questions_id" value="{{ questions.id }}">
20         </div>
21         <button type="submit" class="btn btn-default" onclick="fnDetail">发送</button>
22 
23     {# 评论列表#}
24     </form>
25     <h4>评论({{ questions.comments|length }})</h4>
26     <ul class="list-group" style="margin: 10px"></ul>
27 {% endblock %}

1.主页运行结果：

2.详情页运行结果：

3.数据库运行结果：