完成个人中心—导航标签

个人中心—视图函数带标签页面参数tag
@app.route('/usercenter/<user_id>/<tag>')
def usercenter(user_id, tag):
   if tag == ‘1':
       return render_template('usercenter1.html', **context)

@app.route('/usercenter/<user_id>/<tag>')
@loginFirst
def usercenter(user_id,tag):
    user = User.query.filter(User.id == user_id).first()
    context = {
        'user': user
    }
    if tag =='1':
        return render_template('user1.html',**context)
    elif tag =='2':
        return render_template('user2.html', **context)
    else:
        return render_template('user3.html', **context)

个人中心—导航标签链接增加tag参数
<li role=“presentation”><a href=“{{ url_for(‘usercenter’,user_id = user.id,tag = ‘1’) }}">全部问答</a></li>

    <ul class="nav_ul">
        <li role="presentation>"><a href="{{ url_for(usercenter,user_id=user.id,tag='1') }}">个人资料</a> </li>
        <li role="presentation>"><a href="{{ url_for(usercenter,user_id=user.id,tag='2') }}">全部问答</a> </li>
        <li role="presentation>"><a href="{{ url_for(usercenter,user_id=user.id,tag='3') }}">全部评论</a> </li>
    </ul>

个人中心—有链接到个人中心页面的url增加tag参数
 <a href="{{ url_for('usercenter',user_id = session.get('userid'), tag=1) }}">{{ session.get('user') }}</a>

 <ul class="list-group">
        {% for foo in questions %}
            <li class="list-group-item">
                <span class="glyphicon" glyphicon-leaf aria-hidden="true"></span>
                <a href="{{ url_for('usercenter',user_id = foo.author.id,tag = '1') }}">用户名:{{ foo.author.username }}</a>
                <br>
                <a href="{{ url_for('xiangqing',question_id = foo.id) }}">标题:{{ foo.title }}</a>
                <span class="badge">{{ foo.creat_time }}</span>
                <br>
                <p class="neirong">内容:{{ foo.detail }}</p>
            </li>
        {% endfor %}
         </ul>