每当我单击折叠按钮时，都不会发生任何事情。我已经在两台笔记本电脑上都进行了检查，所以我想Web浏览器没有问题。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>QPZONE</title>
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css">
</head>
<body>
<nav class="navbar navbar-inverse navbar-static-top" role="navigation">
<div class="container-fluid">
<a class="navbar-brand" href="index.html">QPZONE</a>
<button class="navbar-toggle" data-toggle="collapse" data-target=".navHeaderCollapse">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<div class="collapse navbar-collapse navHeaderCollapse">
<ul class="nav navbar-nav navbar-right">
<li><a href="index.html">Home</a></li>
<li><a href="index.html">1st Year</a></li>
<li><a href="index.html">2nd Year</a></li>
<li><a href="index.html">3rd Year</a></li>
<li><a href="index.html">4th Year</a></li>
</ul>
</div>
</nav>
<script type="js/jquery.js"></script>
<script type="js/bootstrap.min.js"></script>
</body>
</html>
最佳答案
检查它是否工作正常，请检查所有CSS和jquery文件是否存在。
复制以下代码并运行即可。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>QPZONE</title>
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css">
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<!-- Optional theme -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css" integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp" crossorigin="anonymous">
</head>
<body>
<nav class="navbar navbar-inverse navbar-static-top" role="navigation">
<div class="container-fluid">
<a class="navbar-brand" href="index.html">QPZONE</a>
<button class="navbar-toggle" data-toggle="collapse" data-target=".navHeaderCollapse">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<div class="collapse navbar-collapse navHeaderCollapse">
<ul class="nav navbar-nav navbar-right">
<li><a href="index.html">Home</a></li>
<li><a href="index.html">1st Year</a></li>
<li><a href="index.html">2nd Year</a></li>
<li><a href="index.html">3rd Year</a></li>
<li><a href="index.html">4th Year</a></li>
</ul>
</div>
</nav>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
</body>
</html>