这就是我使用带有 sass 的 boostrap“租用”的方式，这就是我单击添加到菜单的下拉菜单时的方式，这样它就不会“下降”，换句话说就是展示自己。
我已经在菜单上这样做了。
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="true">Opret <span class="caret"></span></a>
<ul class="dropdown-menu" role="menu">
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li 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>
在页面底部，我添加了新版本的jquery和我收集Bootstrap时自带的旧版本到我的visual studio Express 2013
<script src="../Scripts/jquery-2.1.3.js"></script>
<script src="../javascripts/js/lightbox.js"></script>
<!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
<!-- Include all compiled plugins (below), or include individual files as needed -->
<script src="../js/bootstrap.min.js"></script>
编辑
<script src="../javascripts/js/lightbox.js"></script>
<!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
<!-- Include all compiled plugins (below), or include individual files as needed -->
<script src="../js/bootstrap.min.js"></script>
编辑 2
<head runat="server">
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Instruktor Panel</title>
<asp:ContentPlaceHolder ID="head" runat="server">
</asp:ContentPlaceHolder>
<link href="../stylesheets/StyleSheet.css" rel="stylesheet" />
<link href="../stylesheets/css/lightbox.css" rel="stylesheet" />
</head>
编辑 3 - 我发现的问题位于此处:
<script src="../javascripts/bootstrap.min.js"></script>
是我写的，用js写的，结果全是javascript
最佳答案
jquery js文件有两个版本。删除其中一个，然后重试。
<script src="../Scripts/jquery-2.1.3.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
我刚刚复制了您的 html 代码并添加了 jquery 和 bootstrap js 文件。它适用于 FIDDLE
这是HTML代码
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title> - jsFiddle demo by User86745458</title>
<link rel="stylesheet" type="text/css" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<script type='text/javascript'>//<![CDATA[
$(window).load(function(){
});//]]>
</script>
</head>
<body>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="true">Opret <span class="caret"></span></a>
<ul class="dropdown-menu" role="menu">
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li 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>
<script type='text/javascript' src='http://code.jquery.com/jquery-2.1.0.js'></script>
<script type="text/javascript" src="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
</body>
</html>
关于javascript - 点击下拉不下来，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/28954822/