同样的代码没有产生相同的行为，这有点好笑。
这是jsfiddle代码。 这是spyscroll的一个很好的演示。
所以我将代码复制到我的本地html文件中。
这是我的本地html文件。我拿着appengine文件。我检查了jquery，bootstrap.min.css和bootstrap.min.js是否正确加载。 jquery的版本是2.1.3，bootstrap是3.0.0。
我已经尝试过spyscroll的其他jsfiddle，完全相同的事情发生了。不是在当地工作，而是在jsfiddle工作。 当我滚动页面时，导航系统没有反映出来并且始终坚持最后一项。
<html>
<script src="bower_components/jquery/dist/jquery.js"></script>
<!-- <link rel="stylesheet" href="bower_components/bootstrap/dist/css/bootstrap.min.css"> -->
<!-- <script src="bower_components/bootstrap/dist/js/bootstrap.min.js"></script> -->
<link rel="stylesheet" href="bower_components/bootstrap.min.css">
<script src="bower_components/bootstrap.min.js"></script>
<style>
.group {
background: yellow;
width: 200px;
height: 500px;
}
.group .subgroup {
background: orange;
width: 150px;
height: 200px;
}
#sidebar.affix {
top: 20px;
}
/* sidebar */
.bs-docs-sidebar {
padding-left: 20px;
margin-top: 20px;
margin-bottom: 20px;
}
/* all links */
.bs-docs-sidebar .nav>li>a {
color: #999;
border-left: 2px solid transparent;
padding: 4px 20px;
font-size: 13px;
font-weight: 400;
}
/* nested links */
.bs-docs-sidebar .nav .nav>li>a {
padding-top: 1px;
padding-bottom: 1px;
padding-left: 30px;
font-size: 12px;
}
/* active & hover links */
.bs-docs-sidebar .nav>.active>a,
.bs-docs-sidebar .nav>li>a:hover,
.bs-docs-sidebar .nav>li>a:focus {
color: #563d7c;
text-decoration: none;
background-color: transparent;
border-left-color: #563d7c;
}
/* all active links */
.bs-docs-sidebar .nav>.active>a,
.bs-docs-sidebar .nav>.active:hover>a,
.bs-docs-sidebar .nav>.active:focus>a {
font-weight: 700;
}
/* nested active links */
.bs-docs-sidebar .nav .nav>.active>a,
.bs-docs-sidebar .nav .nav>.active:hover>a,
.bs-docs-sidebar .nav .nav>.active:focus>a {
font-weight: 500;
}
/* hide inactive nested list */
.bs-docs-sidebar .nav ul.nav {
display: none;
}
/* show active nested list */
.bs-docs-sidebar .nav>.active>ul.nav {
display: block;
}
</style>
<!-- Top Navbar -->
<body>
<div class="navbar navbar-inverse">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle"
data-toggle="collapse"
data-target=".navbar-collapse">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">
Bootstrap 3.0 Skeleton
</a>
</div>
<div class="collapse navbar-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>
</ul>
</div>
</div>
</div>
<div class="row">
<!--Nav Bar -->
<nav class="col-xs-3 bs-docs-sidebar">
<ul id="sidebar" class="nav nav-stacked">
<li>
<a href="#GroupA">Group A</a>
<ul class="nav nav-stacked">
<li><a href="#GroupASub1">Sub-Group 1</a></li>
<li><a href="#GroupASub2">Sub-Group 2</a></li>
</ul>
</li>
<li>
<a href="#GroupB">Group B</a>
<ul class="nav nav-stacked">
<li><a href="#GroupBSub1">Sub-Group 1</a></li>
<li><a href="#GroupBSub2">Sub-Group 2</a></li>
</ul>
</li>
<li>
<a href="#GroupC">Group C</a>
<ul class="nav nav-stacked">
<li><a href="#GroupCSub1">Sub-Group 1</a></li>
<li><a href="#GroupCSub2">Sub-Group 2</a></li>
</ul>
</li>
</ul>
</nav>
<!--Main Content -->
<div class="col-xs-9">
<section id="GroupA" class="group">
<h3>Group A</h3>
<div id="GroupASub1" class="subgroup">
<h4>Group A Sub 1</h4>
</div>
<div id="GroupASub2" class="subgroup">
<h4>Group A Sub 2</h4>
</div>
</section>
<section id="GroupB" class="group">
<h3>Group B</h3>
<div id="GroupBSub1" class="subgroup">
<h4>Group B Sub 1</h4>
</div>
<div id="GroupBSub2" class="subgroup">
<h4>Group B Sub 2</h4>
</div>
</section>
<section id="GroupC" class="group">
<h3>Group C</h3>
<div id="GroupCSub1" class="subgroup">
<h4>Group C Sub 1</h4>
</div>
<div id="GroupCSub2" class="subgroup">
<h4>Group C Sub 2</h4>
</div>
</section>
</div>
</div>
</body>
<script>
$('body').scrollspy({
target: '.bs-docs-sidebar',
offset: 40
});
$("#sidebar").affix({
offset: {
top: 60
}
});
</script>
答案 0 :(得分：2)
在页面顶部添加$(function() {}。
使用jQuery的<html>
<head>
<style>
body {
background-image: url("http://i.imgur.com/SwKXk23.jpg");
background-repeat: no-repeat;
background-attachment: fixed;
background-position: center;
}
body {
margin: 0;
}
.header {
width: 100%;
height: auto;
background-color: none;
padding-top: 24px;
}
.headerContent {
width: 1024px;
height: auto;
margin: 0 auto;
}
.headerContent a img {
width: 659px;
height: 144px;
margin: 0px auto;
display: block;
}
.nav {
width:750px;
margin:0 auto;
list-style:none;
}
.nav li {
float:left;
}
.nav a {
display:block;
text-align:center;
width:150px; /* fixed width */
text-decoration:none;
}
.nav ul li{
height: 40 px;
background: #A14F53;
}
.nav ul li{
list-style-type: none;
width: 150px;
float: left;
}
.nav ul li a{
text-decoration: none;
color: black;
line-height: 40px;
display: block;
border-right: 1px solid #CCC;
text-align:center;
}
.nav ul li a:hover{
background-color:#F9C1B5;
}
.headerBreak{
width: 100%;
height: o%;
border bottom: 2px solid #128e75;
}
</style>
</head>
<body>
<div class="background">
<div class="header">
<div class="headerContent">
<a href="#">
<img style="border:0;width:900px;height:250px;" alt=""
title="" src="http://i.imgur.com/5NhCbxu.png">
</a>
</div>
<div class="nav">
<ul id="nav">
<li><a href="Pagina principala.html">Pagina principala</a></li>
<li><a href="Despre noi.html">Despre noi</a></li>
<li><a href="Clienţii noştri.html">Clientii nostri</a></li>
<li><a href="Produse.html">Produse</a></li>
<li><a href="Contacte.html">Contacte</a></li>
</ul>
</div>
</div>
<div class="headerBreak"></div>
</div>
</body>
</html>
包装器