引入 Bootstrap.css,jquery.js,Bootstrap.js三个文件
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<link rel="stylesheet" type="text/css" href="CSS/bootstrap.css"/>
<script src="js/jquery.js"></script>
<script src="js/bootstrap.js"></script>
<style type="text/css">
body {
margin: 50px;
}
hr {
border: 1px solid #761C19;
}
</style>
</head>
<!-- bootstrap中的导航组件都依赖于nav类, -->
<!-- 标签页 -->
<body>
<ul class="nav nav-tabs">
<li > <a href="">Home</a></li>
<li><a href="">Profile</a></li>
<li><a href="">Messages</a></li>
<li><a href="">Login</a></li>
</ul>
<hr >
<!-- 胶囊式标签页 -->
<!-- 使用nav-pills -->
<ul class="nav nav-pills">
<li><a href="">Home</a></li>
<li><a href="">Profile</a></li>
<li><a href="">Messages</a></li>
</ul>
<hr >
<!-- 胶囊式标签页也可以垂直方向排列 -->
<ul class="nav nav-pills nav-stacked">
<li><a href="">Home</a></li>
<li><a href="">Profile</a></li>
<li><a href="">Messages</a></li>
</ul>
<hr >
<!-- 两端对齐的标签页 -->
<ul class="nav nav-pills nav-justified">
<li><a href="">Home</a></li>
<li><a href="">Profile</a></li>
<li><a href="">Messages</a></li>
</ul>
<hr >
<!-- 禁用连接 -->
<ul class="nav nav-tabs ">
<li><a href="">Home</a></li>
<li><a href="">Profile</a></li>
<li class="disabled"><a href="">Messages</a></li> <!--禁用-->
</ul>
<hr >
<!-- 带下拉菜单的标签页 -->
<ul class="nav nav-tabs">
<li><a href="">Home</a></li>
<li><a href="">Profile</a></li>
<li class="dropdown">
<a href="" class="dropdown-toggle" data-toggle="dropdown" >More<span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="">One</a></li>
<li><a href="">Two</a></li>
<li><a href="">Three</a></li>
</ul>
</li>
</ul>
<hr >
<!-- 带下拉菜单的胶囊式标签页 -->
<ul class="nav nav-pills">
<li><a href="">Home</a></li>
<li><a href="">Profile</a></li>
<li class="dropdown">
<a href="" class="dropdown-toggle" data-toggle="dropdown">More <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="">One</a></li>
<li><a href="">Two</a></li>
<li><a href="">Three</a></li>
</ul>
</li>
</ul>
<hr >
<!-- 导航条 -->
<nav class="navbar navbar-default">
<div class="container-fluid">
<div class="navbar-header"> <!--导航条(navbar)的头部-->
<!-- <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button> -->
<a href="" class="navbar-brand">
<img src="image/photo5.png" style="width: 20px;">
</a>
</div>
<ul class="nav navbar-nav">
<li><a href="">论坛首页</a></li>
<li><a href="">技术论坛</a></li>
<li><a href="">前端论坛</a></li>
<li><a href="">后端论坛</a></li>
</ul>
</div>
</nav>
<!-- 表单 -->
<!-- 将表单放置于navbar-form中 -->
<nav class="navbar navbar-default">
<div class="container-fluid">
<!-- 导航栏头部 ,navbar-header,navbar-brand-->
<div class="navbar-header">
<div class="navbar-brand">
<img src="image/photo5.png" style="width: 20px;" >
</div>
</div>
<!-- 导航栏选项 -->
<ul class="nav navbar-nav">
<li><a href="">首页</a></li>
<li><a href="">最新博文</a></li>
<li><a href="">个人中心</a></li>
</ul>
<!-- 导航栏中的文本,navbar-text -->
<p class="navbar-text">Welcome to My <a href="" class="navbar-link">Blog</a> </p>
<!-- 导航栏中的按钮 -->
<button type="button" class="btn btn-default navbar-btn navbar-right">注册</button>
<button type="button" class="btn btn-default navbar-btn navbar-right" style="margin-right: 5px;">登录</button>
<!-- 导航栏搜索框 navbar-form-->
<form class="navbar-form navbar-right" action="" method="">
<div class="form-group">
<input type="text" class="form-control" name="" id="" value="" placeholder="请输入内容...." />
<button type="button" class="btn btn-default
">Search</button>
</div>
</form>
</div>
</nav>
<!-- 将导航栏置顶 navbar-fixed-top,navbar-fixed-bottom-->
<!-- navbar-inverse 导航条反色 -->
<nav class="navbar navbar-default navbar-fixed-top navbar-inverse">
<div class="container">
<div class="navbar-header">
<div class="navbar-brand">
<img src="image/photo5.png" style="width: 20px;" >
</div>
</div>
<ul class="nav navbar-nav">
<li><a href="">首页</a></li>
<li><a href="">机器学习</a></li>
<li><a href="">大数据</a></li>
<li><a href="">人工智能</a></li>
</ul>
<button type="button" class="btn btn-default navbar-btn navbar-right">注册</button>
<button type="button" class="btn btn-default navbar-btn navbar-right" style="margin-right: 5px;">登录</button>
<form class="navbar-form" action="" method="">
<div class="input-group">
<input type="text" class="form-control" name="" id="" value="" placeholder="请输入搜索内容" />
<span class="input-group-btn">
<button type="button" class="btn btn-default ">Search</button>
</span>
</div>
</form>
</div>
</nav>
</body>
</html>