本文实例讲述了jQuery多级联动下拉插件chained用法。分享给大家供大家参考，具体如下：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Chained Select / Pulldown Demo</title>
<meta name="generator" content="fingers" />
<style type="text/css">
#sidebar {
width: 0px;
}
#content {
width: 770px;
}
#button, #button-remote {
display: none;
}
</style>
</head>
<body>
<div id="wrap">
<div id="header">
<p>
<h1>Chained</h1><br />
<small>Chained select plugin for jQuery</small>
<ul id="nav">
<li id="first"><a href="/" class="active">weblog</a></li>
<li><a href="/projects" class="last">projects</a></li>
<!--
<li><a href="/cv" class="last">cv</a></li>
-->
</ul>
</p>
</div>
<div id="content">
<div class="entry">
<h3>jquery.chained.js</h3>
<form>
<select id="mark">
<option value="">--</option>
<option value="bmw">BMW</option>
<option value="audi">Audi</option>
</select>
<select id="series">
<option value="">--</option>
<option value="series-1" class="bmw">1 series</option>
<option value="series-3" class="bmw">3 series</option>
<option value="series-5" class="bmw">5 series</option>
<option value="a1" class="audi">A1</option>
<option value="a3" class="audi">A3</option>
<option value="s3" class="audi">S3</option>
</select>
<select id="model">
<option value="">--</option>
<option value="3-doors" class="series-1 bmw">3 doors</option>
<option value="5-doors" class="series-1">5 doors</option>
<option value="coupe" class="series-1 series-3 series-6">Coupe</option>
<option value="cabrio" class="series-1 series-3 series-6">Cabrio</option>
<option value="sedan" class="series-3 series-5 series-7">Sedan</option>
<option value="touring" class="series-3 series-5">Touring</option>
<option value="sedan" class="a1 a3 s3">Sedan</option>
<option value="sportback" class="a3">Sportback</option>
<option value="cabriolet" class="a3">Cabriolet</option>
<option value="avant" class="a1">Avant</option>
<option value="allroad" class="a3">Allroad</option>
<option value="coupe" class="s3">Coupe</option>
</select>
<select id="engine">
<option value="" width="150"></option>
<option value="25-petrol" class="series-3 bmw">2.5 petrol</option>
<option value="30-petrol" class="series-3 a3">3.0 petrol</option>
<option value="30-diesel" class="coupe">3.0 diesel</option>
</select>
</form>
</div>
<div id="sidebar">
</div>
</div>
<div id="footer">
</div>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js" type="text/javascript" charset="utf-8"></script>
<script src="jquery.chained.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript" charset="utf-8">
$(function() {
/* For jquery.chained.js */
$("#series").chained("#mark");
$("#model").chained("#series,#mark");
$("#engine").chained("#series, #model,#mark");
})
</script>
<script src="http://www.google-analytics.com/urchin.js" type="text/javascript"></script>
<script type="text/javascript">
_uacct = "UA-190966-1";
urchinTracker();
</script>
</body>
</html>
PS：关于chained插件，本站还提供了如下的下载地址：
http://www.maopiaopiao.com/jiaoben/41472.html
更多关于jQuery相关内容感兴趣的读者可查看本站专题：《jQuery扩展技巧总结》、《jQuery常用插件及用法总结》、《jQuery拖拽特效与技巧总结》、《jQuery表格(table)操作技巧汇总》、《jquery中Ajax用法总结》、《jQuery常见经典特效汇总》、《jQuery动画与特效用法总结》及《jquery选择器用法总结》
希望本文所述对大家jQuery程序设计有所帮助。