从首页问答标题到问答详情页

1. 主PY文件写视图函数，带id参数。

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

3. 首页标题的标签做带参数的链接。
   1. {{ url_for('detail',question_id = foo.id) }}
4. 在详情页将数据的显示在恰当的位置。

5. {{ ques.title}}
   {{ ques.id  }}{{  ques.creat_time }}

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

6.  {% block main %}
   
            <P align="center" style="background-color:rgba(255,255,0,0.25)">{{username}}请登录</P>
             <ur class="sss" style="background-color:rgba(255,255,0,0.25)">
                 {% for foo in fankui %}
                    <li class="list">
                    <span class="glyphicon" aria-hidden="true"></span>
                    <a href="#">{{foo.author.username}}</a>
                    <br>
                    <a href="{{url_for('详情页',fankui_id = foo.id )}}">{{foo.biaoti}}</a>
                    <span class="badge">{{foo.creat_time}} </span>
                    <p>{{foo.questionDetail}}</p>
   
                   </li>
                 {% endfor %}
   
             </ur>
   
   
   
            {% endblock %}

   {% block main %}
    <div class="container" align="center">
       <div class="row clearfix">
           <div class="col-md-4 column">
           </div>
           <div class="col-md-4 column">
               <div class="page-header">
                   <h1>
                       {{ ques.biaoti }} <small>{{ ques.author.username }}</small>
                   </h1>
               </div>
               <p>
                   detail {{ ques.creat_time }}
               </p>
               <form action="{{url_for('fankui')}}" method="post">
   
               </form>
               <p>
                    <a class="btn" href="#">{{ ques.questionDetail }}<br></a>
               </p>
               <form role="form">
   
                     <div class="form-group">
                <h3>评论:({{ques.comments|length}})</h3>
               <textarea class="form-control" id="questionDetail" cols="30" rows="5" name="questionDetail"></textarea>
           </div>
           <div class="input-area">
               <button onclick="return　fnLogin()">fabu</button>
   
           </div>
               </form>
           </div>
           <div class="col-md-4 column">
           </div>
       </div>
   </div>

   def danghangye():
       context = {
           'fankui':Fankui.query.order_by('creat_time').all()
       }
       return render_template('danghangye.html',**context)
   
   @app.route('/详情页/<fankui_id>')
   def 详情页(fankui_id):
       quest=Fankui.query.filter(Fankui.id == fankui_id).first()
   
   
   
       return  render_template('详情页.html',ques = quest)

   

   

   class Comment(db.Model):
       __tablename__ = 'comment'
       id = db.Column(db.Integer, primary_key=True, autoincrement=True)
       author_id = db.Column(db.Integer, db.ForeignKey('user.id'))
       question_id = db.Column(db.Integer, db.ForeignKey('question.id'))
       creat_time = db.Column(db.DateTime, default=datetime.now)
       detail = db.Column(db.Text, nullable=False)
       question = db.relationship('Question', backref=db.backref('comments'))
       author = db.relationship('User', backref=db.backref('comments'))