我正在使用Bootstrap，但我不能让手风琴崩溃。它什么都不做。有帮助吗？我环顾四周并添加了所需的文件但它仍然无法正常工作。任何帮助，将不胜感激。我正在使用网站上最新的Bootstrap文件。
<!DOCTYPE html>
<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">
<!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
<meta name="description" content="">
<meta name="author" content="">
<link rel="icon" href="../../favicon.ico">
<title>title</title>
<!-- Bootstrap core CSS -->
<link href="https://maxcdn.bootstrapcdn.com/bootswatch/3.3.5/darkly/bootstrap.min.css" rel="stylesheet">
<!-- Custom styles for this template -->
<link href="navbar-fixed-top.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="../../assets/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>
<!-- Fixed navbar -->
<nav class="navbar navbar-default navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
<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="#">title</a>
</div>
<div id="navbar" class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li class="active"><a href="#">Home</a>
</li>
<li><a href="#about">About</a>
</li>
<li><a href="#contact">Contact</a>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#">Action</a>
</li>
<li><a href="#">Another action</a>
</li>
<li><a href="#">Something else here</a>
</li>
<li role="separator" class="divider"></li>
<li class="dropdown-header">Nav header</li>
<li><a href="#">Separated link</a>
</li>
<li><a href="#">One more separated link</a>
</li>
</ul>
</li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li><a href="http://site.com.au">site.com.au</a>
</li>
</ul>
</div>
<!--/.nav-collapse -->
</div>
</nav>
<div class="container">
<!-- Main component for a primary marketing message or call to action -->
<div class="jumbotron">
<h2><b>site</b></h2>
<p>site</p>
<div class="bs-example">
<div class="panel-group" id="accordion">
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" data-parent="#accordion" href="#collapseOne">1. What is HTML?</a>
</h4>
</div>
<div id="collapseOne" class="panel-collapse collapse in">
<div class="panel-body">
<p>HTML stands for HyperText Markup Language. HTML is the main markup language for describing the structure of Web pages. <a href="http://www.tutorialrepublic.com/html-tutorial/" target="_blank">Learn more.</a>
</p>
</div>
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" data-parent="#accordion" href="#collapseTwo">2. What is Bootstrap?</a>
</h4>
</div>
<div id="collapseTwo" class="panel-collapse collapse">
<div class="panel-body">
<p>Bootstrap is a powerful front-end framework for faster and easier web development. It is a collection of CSS and HTML conventions. <a href="http://www.tutorialrepublic.com/twitter-bootstrap-tutorial/" target="_blank">Learn more.</a>
</p>
</div>
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" data-parent="#accordion" href="#collapseThree">3. What is CSS?</a>
</h4>
</div>
<div id="collapseThree" class="panel-collapse collapse">
<div class="panel-body">
<p>CSS stands for Cascading Style Sheet. CSS allows you to specify various style properties for a given HTML element such as colors, backgrounds, fonts etc. <a href="http://www.tutorialrepublic.com/css-tutorial/" target="_blank">Learn more.</a>
</p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<!-- /container -->
<!-- Bootstrap core JavaScript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="site.com/js/bootstrap.js"></script>
<!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->
<script src="../../assets/js/ie10-viewport-bug-workaround.js"></script>
</body>
</html>
答案 0 :(得分：1)
您的代码完美无缺JSFiddle link。这意味着您的脚本可能有问题。
您的 bootstrap.js CDN不正确。只需改变：
<script src="site.com/js/bootstrap.js"></script>
这一个：
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
...
<!-- Fixed navbar -->
<nav class="navbar navbar-default navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
<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="#">title</a>
</div>
<div id="navbar" class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li class="active"><a href="#">Home</a>
</li>
<li><a href="#about">About</a>
</li>
<li><a href="#contact">Contact</a>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#">Action</a>
</li>
<li><a href="#">Another action</a>
</li>
<li><a href="#">Something else here</a>
</li>
<li role="separator" class="divider"></li>
<li class="dropdown-header">Nav header</li>
<li><a href="#">Separated link</a>
</li>
<li><a href="#">One more separated link</a>
</li>
</ul>
</li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li><a href="http://site.com.au">site.com.au</a>
</li>
</ul>
</div>
<!--/.nav-collapse -->
</div>
</nav>
<div class="container">
<!-- Main component for a primary marketing message or call to action -->
<div class="jumbotron">
<h2><b>site</b></h2>
<p>site</p>
<div class="bs-example">
<div class="panel-group" id="accordion">
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" data-parent="#accordion" href="#collapseOne">1. What is HTML?</a>
</h4>
</div>
<div id="collapseOne" class="panel-collapse collapse in">
<div class="panel-body">
<p>HTML stands for HyperText Markup Language. HTML is the main markup language for describing the structure of Web pages. <a href="http://www.tutorialrepublic.com/html-tutorial/" target="_blank">Learn more.</a>
</p>
</div>
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" data-parent="#accordion" href="#collapseTwo">2. What is Bootstrap?</a>
</h4>
</div>
<div id="collapseTwo" class="panel-collapse collapse">
<div class="panel-body">
<p>Bootstrap is a powerful front-end framework for faster and easier web development. It is a collection of CSS and HTML conventions. <a href="http://www.tutorialrepublic.com/twitter-bootstrap-tutorial/" target="_blank">Learn more.</a>
</p>
</div>
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" data-parent="#accordion" href="#collapseThree">3. What is CSS?</a>
</h4>
</div>
<div id="collapseThree" class="panel-collapse collapse">
<div class="panel-body">
<p>CSS stands for Cascading Style Sheet. CSS allows you to specify various style properties for a given HTML element such as colors, backgrounds, fonts etc. <a href="http://www.tutorialrepublic.com/css-tutorial/" target="_blank">Learn more.</a>
</p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
答案 1 :(得分：1)
您的代码似乎对我有用：https://jsfiddle.net/gzdtsnLd/
您是否在网页上链接了Bootstrap JS，CSS和jQuery？您的页面上还可能存在jQuery冲突，导致其无法正常工作？
<div class="bs-example">
<div class="panel-group" id="accordion">
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" data-parent="#accordion" href="#collapseOne">1. What is HTML?</a>
</h4>
</div>
<div id="collapseOne" class="panel-collapse collapse in">
<div class="panel-body">
<p>HTML stands for HyperText Markup Language. HTML is the main markup language for describing the structure of Web pages. <a href="http://www.tutorialrepublic.com/html-tutorial/" target="_blank">Learn more.</a>
</p>
</div>
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" data-parent="#accordion" href="#collapseTwo">2. What is Bootstrap?</a>
</h4>
</div>
<div id="collapseTwo" class="panel-collapse collapse">
<div class="panel-body">
<p>Bootstrap is a powerful front-end framework for faster and easier web development. It is a collection of CSS and HTML conventions. <a href="http://www.tutorialrepublic.com/twitter-bootstrap-tutorial/" target="_blank">Learn more.</a>
</p>
</div>
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" data-parent="#accordion" href="#collapseThree">3. What is CSS?</a>
</h4>
</div>
<div id="collapseThree" class="panel-collapse collapse">
<div class="panel-body">
<p>CSS stands for Cascading Style Sheet. CSS allows you to specify various style properties for a given HTML element such as colors, backgrounds, fonts etc. <a href="http://www.tutorialrepublic.com/css-tutorial/" target="_blank">Learn more.</a>
</p>
</div>
</div>
</div>
</div>
</div>
</div>