对不起，如果之前已经回答过，请联系我，如果有的话，我找不到任何东西..
基本上，我的jQuery在Bootstrap上运行良好，直到我制作了一个favicon。现在我认为我的脚本/头标签对齐是关闭的，所以我试着修复过去一小时，但没有任何工作。
同样将脚本放在正文末端，就像正常一样，不起作用。不知道我在这里做错了什么。
<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></title>
<!-- jQuery -->
<script src="js/jquery-1.12.4.min.js"></script>
<!-- CSS -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<link href="css/style.css" rel="stylesheet">
<!-- Fonts -->
<link href='https://fonts.googleapis.com/css?family=PT+Serif:400,700' rel='stylesheet' type='text/css'>
<link href='https://fonts.googleapis.com/css?family=Exo+2:400,300,700,900,800' rel='stylesheet' type='text/css'>
<!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
<script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
<!-- snip html -->
<!-- jQuery Version -->
<script src="js/jquery-1.12.4.min.js"></script>
<!-- Bootstrap Core JavaScript -->
<script src="js/bootstrap.min.js"></script>
</body></html>
我知道它现在在那里两次，但都不起作用。怎么了？ ：（
编辑：下拉列表不起作用，这是下拉列表的HTML：
<!-- Navigation -->
<nav class="navbar navbar-default">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
<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="#"><img src="img/logo/logo.png" class="img-responsive img-icon" /></a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse navbar-default">
<ul class="nav navbar-nav">
<li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li>
<li><a href="#">Link</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><a href="#">Separated link</a></li>
<li role="separator" class="divider"></li>
<li><a href="#">One more separated link</a></li>
</ul>
</li>
</ul>
<form class="navbar-form navbar-right" role="search">
<div class="form-group">
<input type="text" class="form-control" placeholder="Search">
</div>
<button type="submit" class="btn btn-default">Submit</button>
</form>
</div><!-- /.navbar-collapse -->
</div><!-- /.container-fluid -->
</nav>
/* Navbar Colours - Fixing Dropdown */
.nav > li a {
color: #e97117;
}
.nav > li a:hover, a:focus {
color: #e97117;
}
/* Navbar link Colours */
.navbar-default a:hover, a:focus {
color: #e97117 !important;
}
/* Button Colour */
.btn {
color: #fff;
font-family: 'Exo 2', sans-serif;
}
.btn-default:hover,
.btn-default:focus {
color: #e97117;
background-color: transparent;
border-color: #e97117;
}
.btn-secondary {
color: #fff;
background-color: transparent;
border-color: #fff;
}
.btn-secondary:hover,
.btn-secondary:focus {
color: #fff;
background-color: #e97117;
border-color: #fff;
}
答案 0 :(得分：3)
正如@jdelaney所说，你错过了一个密钥ID。
<div class="collapse navbar-collapse navbar-default" id="bs-example-navbar-collapse-1">
此外，在您的代码示例中，您的js和css的路径是＆＃34; page relative＆＃34;而不是＆＃34;网站相对＆＃34;或者＆＃34;完全合格＆＃34;。因此，如果您要测试的页面不是您的＆＃34;主页＆＃34;您很可能根本不加载这些资产。您是否碰巧在控制台中看到404错误？
无论如何，这个例子似乎对@jdelaney建议的编辑起作用。
.nav > li a {
color: #e97117;
}
.nav > li a:hover, a:focus {
color: #e97117;
}
/* Navbar link Colours */
.navbar-default a:hover, a:focus {
color: #e97117 !important;
}
/* Button Colour */
.btn {
color: #fff;
font-family: 'Exo 2', sans-serif;
}
.btn-default:hover,
.btn-default:focus {
color: #e97117;
background-color: transparent;
border-color: #e97117;
}
.btn-secondary {
color: #fff;
background-color: transparent;
border-color: #fff;
}
.btn-secondary:hover,
.btn-secondary:focus {
color: #fff;
background-color: #e97117;
border-color: #fff;
}<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.6/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.6/js/bootstrap.min.js"></script>
<nav class="navbar navbar-default">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
<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="#">
<img src="img/logo/logo.png" class="img-responsive img-icon" />
</a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse navbar-default" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav">
<li class="active"><a href="#">Link <span class="sr-only">(current)</span></a>
</li>
<li><a href="#">Link</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><a href="#">Separated link</a>
</li>
<li role="separator" class="divider"></li>
<li><a href="#">One more separated link</a>
</li>
</ul>
</li>
</ul>
<form class="navbar-form navbar-right" role="search">
<div class="form-group">
<input type="text" class="form-control" placeholder="Search">
</div>
<button type="submit" class="btn btn-default">Submit</button>
</form>
</div>
<!-- /.navbar-collapse -->
</div>
<!-- /.container-fluid -->
</nav>
答案 1 :(得分：1)
查看定义折叠按钮的行：
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
注意它是如何data-target的。这指的是要崩溃的元素。如果您查看example on the Bootstrap site，您会注意到主要导航栏内容div具有该ID（您的HTML丢失）：
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
答案 2 :(得分：0)
<!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">
<meta name="description" content="">
<meta name="author" content="">
<title></title>
<!-- jQuery -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<!-- CSS -->
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet">
<!-- Fonts -->
<link href='https://fonts.googleapis.com/css?family=PT+Serif:400,700' rel='stylesheet' type='text/css'>
<link href='https://fonts.googleapis.com/css?family=Exo+2:400,300,700,900,800' rel='stylesheet' type='text/css'>
<!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
<script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
<nav class="navbar navbar-default">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse navbar-default">
<ul class="nav navbar-nav">
<li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li>
<li><a href="#">Link</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><a href="#">Separated link</a></li>
<li role="separator" class="divider"></li>
<li><a href="#">One more separated link</a></li>
</ul>
</li>
</ul>
<form class="navbar-form navbar-right" role="search">
<div class="form-group">
<input type="text" class="form-control" placeholder="Search">
</div>
<button type="submit" class="btn btn-default">Submit</button>
</form>
</div><!-- /.navbar-collapse -->
</div><!-- /.container-fluid -->
</nav>
</body></html>
我要尝试的第一件事就是在头脑中：
变化
<script src="js/jquery-1.12.4.min.js"></script>
到
<script src="js/jquery-1.12.4.min.js"></script>
<script src="js/bootstrap.min.js"></script>
答案 3 :(得分：0)
我认为当你包含两次JQuery时会出现问题。我可以在您的代码中看到您在两个地方引用return B(1-a);
。删除<script src="js/jquery-1.12.4.min.js"></script>标记中的一个＆amp;再试一次。
答案 4 :(得分：0)
我尝试了你的示例html和css代码，我只更改了jquery和bootstrap的包含（从部分删除了jquery并包含了来自cdn的jquery和bootstrap），你可以看到它没有任何问题。
仔细检查你的jquery和bootstrap是否正确包含（文件路径/版本冲突？）。
/* Navbar Colours - Fixing Dropdown */
.nav > li a {
color: #e97117;
}
.nav > li a:hover,
a:focus {
color: #e97117;
}
/* Navbar link Colours */
.navbar-default a:hover,
a:focus {
color: #e97117 !important;
}
/* Button Colour */
.btn {
color: #fff;
font-family: 'Exo 2', sans-serif;
}
.btn-default:hover,
.btn-default:focus {
color: #e97117;
background-color: transparent;
border-color: #e97117;
}
.btn-secondary {
color: #fff;
background-color: transparent;
border-color: #fff;
}
.btn-secondary:hover,
.btn-secondary:focus {
color: #fff;
background-color: #e97117;
border-color: #fff;
}<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></title>
<!-- CSS -->
<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet">
<!-- Fonts -->
<link href='//fonts.googleapis.com/css?family=PT+Serif:400,700' rel='stylesheet' type='text/css'>
<link href='//fonts.googleapis.com/css?family=Exo+2:400,300,700,900,800' rel='stylesheet' type='text/css'>
<!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
<!--[if lt IE 9]>
<script src="//oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
<script src="//oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
<!-- Navigation -->
<nav class="navbar navbar-default">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
<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="#"><img src="img/logo/logo.png" class="img-responsive img-icon" /></a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse navbar-default">
<ul class="nav navbar-nav">
<li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li>
<li><a href="#">Link</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><a href="#">Separated link</a></li>
<li role="separator" class="divider"></li>
<li><a href="#">One more separated link</a></li>
</ul>
</li>
</ul>
<form class="navbar-form navbar-right" role="search">
<div class="form-group">
<input type="text" class="form-control" placeholder="Search">
</div>
<button type="submit" class="btn btn-default">Submit</button>
</form>
</div>
<!-- /.navbar-collapse -->
</div>
<!-- /.container-fluid -->
</nav>
<!-- jQuery Version -->
<script src="//code.jquery.com/jquery-1.12.4.min.js"></script>
<!-- Bootstrap Core JavaScript -->
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
</body>
答案 5 :(得分：0)
问题出在CSS中。
我添加了一个溢出：隐藏的函数，我读过它，因为我的隧道视图是jQuery。
J Delaney帮助我找到了它，现在一切都已修好了。感谢所有试图帮助我的人！没有完整的代码你就不可能知道，但我仍然非常感谢你的帮助！