1.運行效果如圖所示
![wKiom1kmNf6SlRYUAAAqcKlWWJk769.png-wh_50]( "QQ截圖20170525093723.png")
2.實現代碼如下
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>基本導航條</title>
<!-- 最新版本的 Bootstrap 核心 CSS 文件 -->
<link
rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css"
integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u"
crossorigin="anonymous">
<!-- 可選的 Bootstrap 主題文件（一般不用引入） -->
<link rel="stylesheet"
href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap-theme.min.css"
integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp"
crossorigin="anonymous">
</head>
<body>
<div class="navbar navbar-default" role="navigation">
<ul class="nav navbar-nav">
<li class="active"><a href="##">網站首頁</a></li>
<li><a href="##">系列教程</a></li>
<li><a href="##">名師介紹</a></li>
<li><a href="##">成功案例</a></li>
<li><a href="##">關於我們</a></li>
</ul>
</div>
<script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
<!-- 最新的 Bootstrap 核心 JavaScript 文件 -->
<script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"
integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa"
crossorigin="anonymous"></script>
</body>
</html>
