nav.html

<!-- top navigation -->
<div class="top_nav">
    <div class="nav_menu">
        <nav class="" role="navigation">
            <div class="nav toggle">
                <a id="menu_toggle"><i class="fa fa-bars"></i></a>
            </div>
            <ul class="nav navbar-nav navbar-right">
                <li class="">
                    <a href="javascript:;" class="user-profile dropdown-toggle" data-toggle="dropdown" aria-expanded="false">
                    <img src="/static/images/img.jpg" alt="">管理员
                    <span class=" fa fa-angle-down"></span>
                    </a>
                    <ul class="dropdown-menu dropdown-usermenu animated fadeInDown pull-right">
                        <li><a href="{% url 'user_logout' %}"><i class="fa fa-sign-out pull-right"></i>退出登录</a>
                        </li>
                    </ul>
                </li>
            </ul>
        </nav>
    </div>
</div>
<!-- /top navigation -->