我正在尝试使用手风琴效果构建垂直导航菜单。我几乎创建了菜单。但问题是我的所有链接都指向同一个本身。当我点击任何子导航链接时，页面将被重新加载，但父菜单正在折叠。我想在页面重新加载后显示活动的子链接。请建议我解决这个问题。
以下是Demo
HTML：
<!doctype html>
<html lang="en-US">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
<title>Vertical jQuery Accordion Nav Menu</title>
<meta name="author" content="Jake Rocheleau">
<link rel="shortcut icon" href="http://vandelaydesign.com/favicon.ico">
<link rel="icon" href="http://vandelaydesign.com/favicon.ico">
<link rel="stylesheet" type="text/css" href="styles.css">
<link rel="stylesheet" type="text/css" href="http://fonts.googleapis.com/css?family=Merienda:400,700">
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script type="text/javascript" language="javascript" charset="utf-8" src="nav.js"></script>
<!--[if lt IE 9]>
<script type="text/javascript" src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
</head>
<body>
<div id="w">
<h1>CSS3/jQuery Accordion Nav Menu</h1>
<nav>
<ul id="nav">
<li><a href="#">Animation</a>
<ul>
<li><a href="#">Cartoons</a>
</li>
<li><a href="#">Comic Strips</a>
</li>
<li><a href="#">Video Clips</a>
</li>
<li><a href="#">Web GIFs</a>
</li>
</ul>
</li>
<li><a href="#">Graphic Design</a>
<ul>
<li><a href="#">Adobe Photoshop</a>
</li>
<li><a href="#">Branding & Logos</a>
</li>
<li><a href="#">Digital Marketing</a>
</li>
<li><a href="#">Illustrations</a>
</li>
<li><a href="#">Infographics</a>
</li>
<li><a href="#">Product Design</a>
</li>
</ul>
</li>
<li><a href="#">Digital Photography</a>
<ul>
<li><a href="http:/www.google.com/search?q=cityscape+photography">Cityscapes</a>
</li>
<li><a href="#">Oceans</a>
</li>
<li><a href="#">Wide-Angle Lens</a>
</li>
<li><a href="#">Wildlife</a>
</li>
</ul>
</li>
<li><a href="#">Print & Identity</a>
<ul>
<li><a href="#">Branding</a>
</li>
<li><a href="#">Business Cards</a>
</li>
<li><a href="#">Letterpress</a>
</li>
<li><a href="#">Poster Art</a>
</li>
</ul>
</li>
<li><a href="#">Programming</a>
<ul>
<li><a href="#">CSS3</a>
</li>
<li><a href="#">HTML5</a>
</li>
<li><a href="#">JavaScript & jQuery</a>
</li>
<li><a href="#">MySQL Databases</a>
</li>
<li><a href="#">Wordpress CMS</a>
</li>
</ul>
</li>
<li><a href="#">Web Design</a>
<ul>
<li><a href="#">Icons</a>
</li>
#">Tutorials</a>
</li>
<li><a href="#">User Interfaces</a>
</li>
<li><a href="#">Website Layouts</a>
</li>
</ul>
</li>
</ul>
</nav>
</div>
</body>
</html>
CSS：
html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td, article, aside, canvas, details, embed, figure, figcaption, footer, header, hgroup, menu, nav, output, ruby, section, summary, time, mark, audio, video {
margin: 0;
padding: 0;
border: 0;
font-size: 100%;
font: inherit;
vertical-align: baseline;
outline: none;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
html { height: 101%; }
body { font-size: 62.5%; line-height: 1; padding-bottom: 65px; font-family: Arial, Tahoma, sans-serif; background: #c5bde5 url('images/bg.png'); }
article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section { display: block; }
ol, ul { list-style: none; }
blockquote, q { quotes: none; }
blockquote:before, blockquote:after, q:before, q:after { content: ''; content: none; }
strong { font-weight: bold; }
table { border-collapse: collapse; border-spacing: 0; }
img { border: 0; max-width: 100%; }
h1 { font-family: 'Merienda', 'Trebuchet MS', Verdana, sans-serif; font-size: 2.95em; line-height: 1.7em; margin-bottom: 20px; font-weight: bold; letter-spacing: -0.03em; color: #675d90; text-shadow: 2px 2px 0px rgba(255,255,255,0.65); text-align: center; }
#w { display: block; width: 740px; margin: 0 auto; padding-top: 45px; }
/* nav menu styles */
#nav {
display: block;
width: 280px;
margin: 0 auto;
-webkit-box-shadow: 3px 2px 3px rgba(0,0,0,0.7);
-moz-box-shadow: 3px 2px 3px rgba(0,0,0,0.7);
box-shadow: 3px 2px 3px rgba(0,0,0,0.7);
}
#nav li { }
#nav > li > a {
display: block;
padding: 16px 18px;
font-size: 1.3em;
font-weight: bold;
color: #d4d4d4;
text-decoration: none;
border-bottom: 1px solid #212121;
background-color: #343434;
background: -webkit-gradient(linear, left top, left bottom, from(#343434), to(#292929));
background: -webkit-linear-gradient(top, #343434, #292929);
background: -moz-linear-gradient(top, #343434, #292929);
background: -ms-linear-gradient(top, #343434, #292929);
background: -o-linear-gradient(top, #343434, #292929);
background: linear-gradient(top, #343434, #292929);
}
#nav > li > a:hover, #nav > li > a.open {
color: #e9e9e9;
border-bottom-color: #384f76;
background-color: #6985b5;
background: -webkit-gradient(linear, left top, left bottom, from(#6985b5), to(#456397));
background: -webkit-linear-gradient(top, #6985b5, #456397);
background: -moz-linear-gradient(top, #6985b5, #456397);
background: -ms-linear-gradient(top, #6985b5, #456397);
background: -o-linear-gradient(top, #6985b5, #456397);
background: linear-gradient(top, #6985b5, #456397);
}
#nav li ul { display: none; background: #4a5b78; }
#nav li ul li a {
display: block;
background: none;
padding: 10px 0px;
padding-left: 30px;
font-size: 1.1em;
text-decoration: none;
font-weight: bold;
color: #e3e7f1;
text-shadow: 1px 1px 0px #000;
}
#nav li ul li a:hover {
background: #394963;
}
Java脚本：
$(document).ready(function(){
$("#nav > li > a").on("click", function(e){
if($(this).parent().has("ul")) {
e.preventDefault();
}
if(!$(this).hasClass("open")) {
// hide any open menus and remove all other classes
$("#nav li ul").slideUp(350);
$("#nav li a").removeClass("open");
// open our new menu and add the open class
$(this).next("ul").slideDown(350);
$(this).addClass("open");
}
else if($(this).hasClass("open")) {
$(this).removeClass("open");
$(this).next("ul").slideUp(350);
}
});
});
答案 0 :(得分：1)
首先，链接会将用户引导至Google搜索页面。如果这些只是占位符链接，并且您打算在自己的网站中指导用户，那么您可以使用许多选项。你有没有想过使用一种AJAX技术，它允许在没有页面加载的情况下加载内容？ Angular JS是一个很棒的框架，可用于快速创建允许与服务器进行异步交互的单页应用程序。
如果您需要重新加载页面，则可以再次使用多个选项。一个选项是将请求中的参数传递给服务器，您可以使用它以编程方式设置菜单的状态。