【发布时间】：2015-01-21 04:05:16
【问题描述】：
我在尝试使用 django 进行引导时遇到了一些奇怪的事情。我将引导页面 (dashboard-example) 中的仪表板示例复制到我的 django 项目中，以进行一些操作。当我尝试将折叠导航栏用于较小的屏幕尺寸时，当我单击切换按钮时，导航栏就会出现。但是，如果我再次单击切换按钮，导航栏不会消失。我从引导程序一对一地复制了这个例子。为什么切换按钮没有按预期工作？这是生成的html代码：
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="">
<meta name="author" content="">
<title>Dashboard Template for Bootstrap</title>
<!-- Bootstrap core CSS -->
<link href="/static/css/bootstrap.min.css" rel="stylesheet">
<!-- Custom styles for this template -->
<link href="/static/css/dashboardtest.css" rel="stylesheet">
<!-- Just for debugging purposes. Don't actually copy these 2 lines! -->
<!--[if lt IE 9]><script src="../../assets/js/ie8-responsive-file-warning.js"></script><![endif]-->
<script src="/static/js/ie-emulation-modes-warning.js"></script>
<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
<nav class="navbar navbar-inverse navbar-fixed-top" role="navigation">
<div class="container-fluid">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">Project name</a>
</div>
<div id="navbar" class="navbar-collapse collapse">
<ul class="nav navbar-nav navbar-right">
<li><a href="#">Dashboard</a></li>
<li><a href="#">Settings</a></li>
<li><a href="#">Profile</a></li>
<li><a href="#">Help</a></li>
</ul>
<form class="navbar-form navbar-right">
<input type="text" class="form-control" placeholder="Search...">
</form>
</div>
</div>
</nav>
<div class="container-fluid">
<div class="row">
<div class="col-sm-3 col-md-2 sidebar">
<ul class="nav nav-sidebar">
<li class="active"><a href="#">Overview <span class="sr-only">(current)</span></a></li>
<li><a href="#">Reports</a></li>
<li><a href="#">Analytics</a></li>
<li><a href="#">Export</a></li>
</ul>
<ul class="nav nav-sidebar">
<li><a href="">Nav item</a></li>
<li><a href="">Nav item again</a></li>
<li><a href="">One more nav</a></li>
<li><a href="">Another nav item</a></li>
<li><a href="">More navigation</a></li>
</ul>
<ul class="nav nav-sidebar">
<li><a href="">Nav item again</a></li>
<li><a href="">One more nav</a></li>
<li><a href="">Another nav item</a></li>
</ul>
</div>
<div class="col-sm-9 col-sm-offset-3 col-md-10 col-md-offset-2 main">
<h1 class="page-header">Dashboard</h1>
<div class="row placeholders">
<div class="col-xs-6 col-sm-3 placeholder">
<img data-src="holder.js/200x200/auto/sky" class="img-responsive" alt="Generic placeholder thumbnail">
<h4>Label</h4>
<span class="text-muted">Something else</span>
</div>
<div class="col-xs-6 col-sm-3 placeholder">
<img data-src="holder.js/200x200/auto/vine" class="img-responsive" alt="Generic placeholder thumbnail">
<h4>Label</h4>
<span class="text-muted">Something else</span>
</div>
<div class="col-xs-6 col-sm-3 placeholder">
<img data-src="holder.js/200x200/auto/sky" class="img-responsive" alt="Generic placeholder thumbnail">
<h4>Label</h4>
<span class="text-muted">Something else</span>
</div>
<div class="col-xs-6 col-sm-3 placeholder">
<img data-src="holder.js/200x200/auto/vine" class="img-responsive" alt="Generic placeholder thumbnail">
<h4>Label</h4>
<span class="text-muted">Something else</span>
</div>
</div>
<h2 class="sub-header">Section title</h2>
<div class="table-responsive">
<table class="table table-striped">
<thead>
<tr>
<th>#</th>
<th>Header</th>
<th>Header</th>
<th>Header</th>
<th>Header</th>
</tr>
</thead>
<tbody>
</tbody>
</table>
</div>
</div>
</div>
</div>
<!-- Bootstrap core JavaScript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="/static/js/bootstrap.min.js"></script>
<script src="/static/js/docs.min.js"></script>
<!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->
<script src="/static/js/ie10-viewport-bug-workaround.js"></script>
</body>
</html>
【问题讨论】：
-
控制台有错误吗？要打开控制台，请按 F12。
-
很可能是 /static/js/bootstrap.min.js 没有加载
标签： twitter-bootstrap-3 navbar collapse