使用bootstrap实现左侧伸缩菜单

<link href="~/Content/bootstrap.min.css" rel="stylesheet" />
<script src="~/Scripts/jquery-1.10.2.min.js"></script>
<script src="~/Scripts/bootstrap.min.js"></script>   
 <div class="container-fluid">
        <div class="row">
            <div class="col-md-2">
                <ul id="main-nav" class="nav nav-tabs nav-stacked" style="">
                    <li class="active">
                        <a href="#">
                            <i class="glyphicon glyphicon-th-large"></i>
                            首页
                        </a>
                    </li>
                    <li>
                        <a href="#systemSetting" class="nav-header collapsed" data-toggle="collapse">
                            <i class="glyphicon glyphicon-cog"></i>
                            系统管理
                            <span class="pull-right glyphicon glyphicon-chevron-down"></span>
                        </a>
                        <ul id="systemSetting" class="nav nav-list collapse secondmenu" style="height: 0px;">
                            <li><a href="mytask"><i class="glyphicon glyphicon-user"></i>用户管理</a></li>
                            <li><a href="#"><i class="glyphicon glyphicon-th-list"></i>菜单管理</a></li>
                            <li><a href="#"><i class="glyphicon glyphicon-asterisk"></i>角色管理</a></li>
                            <li><a href="#"><i class="glyphicon glyphicon-edit"></i>修改密码</a></li>
                            <li><a href="#"><i class="glyphicon glyphicon-eye-open"></i>日志查看</a></li>
                        </ul>
                    </li>
                    <li>
                        <a href="./plans.html">
                            <i class="glyphicon glyphicon-credit-card"></i>
                            物料管理
                        </a>
                    </li>
                    <li>
                        <a href="./grid.html">
                            <i class="glyphicon glyphicon-globe"></i>
                            分发配置
                            <span class="label label-warning pull-right">5</span>
                        </a>
                    </li>
                    <li>
                        <a href="./charts.html">
                            <i class="glyphicon glyphicon-calendar"></i>
                            图表统计
                        </a>
                    </li>
                    <li>
                        <a href="#">
                            <i class="glyphicon glyphicon-fire"></i>
                            关于系统
                        </a>
                    </li>
                </ul>
            </div>
            @*<div class="col-md-10">
                主窗口
            </div>*@
        </div>
    </div>

效果图