console
DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<link href="css/bootstrap.min.css" rel="stylesheet">
<script src="js/jquery-3.2.1.min.js"></script>
<script src="js/bootstrap.min.js"></script>
<title>后台管理界面</title>
</head>
<body>
<nav class="navbar navbar-inverse" role="navigation">
<div class="container-fluid">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#example-navbar-collapse">
<span class="sr-only">切换导航</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">
<img src="https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1591017487849&di=b99078d3a53afa51db37b4367ef2fde6&imgtype=0&src=http%3A%2F%2Fku.90sjimg.com%2Felement_origin_min_pic%2F16%2F10%2F28%2F13140c8acfa5ed2fc218d39b3e0807e6.jpg" height="100%" />
</a>
</div>
<div class="collapse navbar-collapse" id="example-navbar-collapse">
<ul class="nav navbar-nav">
<li class="active"><a class="icon-bar" href="#">网站设置</a>
</li>
<li><a href="#">分类管理</a>
</li>
<li><a href="#">城市管理</a>
</li>
<li><a href="#">商品管理</a>
</li>
<li><a href="#">订单管理</a>
</li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li><a>欢迎您,admin</a>
</li>
<li><a href="#">安全退出</a>
</li>
</ul>
</div>
</div>
</nav>