完成个人中心—导航标签

1.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,
        'username': user.username,
        'questions': user.question,
        'comments': user.comment
    }
    if tag=='1':
        return render_template('usercenter1.html',**context)
    elif tag=='2':
        return render_template('usercenter2.html', **context)
    else:
        return render_template('usercenter3.html', **context)

2.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>

{% block main %}

    <h3><span class="glyphicon glyphicon-user" aria-hidden="true" ></span>{{ user.username }}</h3>
   <ul class="nav_ul">
    <li role="presentation"class="active"><a href="{{ url_for('usercenter',user_id=user.id,tag=1) }}">全部问题</a></li>
    <li role="presentation"class="active"><a href="{{ url_for('usercenter',user_id=user.id,tag=2) }}">全部评论</a></li>
    <li role="presentation"class="active"><a href="{{ url_for('usercenter',user_id=user.id,tag=3) }}">个人信息</a></li>
   </ul>

{% block user %}{% endblock %}

{% endblock %}

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

<a href="{{ url_for('usercenter',user_id=user.id,tag=1) }}">{{user.username }}</a>

<a href="{{ url_for('usercenter',user_id=foo.author_id,tag=1) }}">{{ foo.author.username }}</a>

<a href="{{ url_for('usercenter',user_id=foo.author.id,tag=1) }}">{{ foo.author.username }}</a>