演示如何使用折叠面板来展示产品的目录结构，使用拖拽和放置来添加产品到购物车，购物车中的产品是可排序的。
- Lolcat Shirt
- Cheezeburger Shirt
- Buckit Shirt
- Zebra Striped
- Black Leather
- Alligator Leather
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 放置（Droppable） - 购物车演示</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
<script src="//code.jquery.com/jquery-1.9.1.js"></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
<link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
<style>
h1 { padding: .2em; margin: 0; }
#products { float:left; width: 500px; margin-right: 2em; }
#cart { width: 200px; float: left; margin-top: 1em; }
/* 定义列表样式，以便最大化 droppable */
#cart ol { margin: 0; padding: 1em 0 1em 3em; }
</style>
<script>
$(function() {
$( "#catalog" ).accordion();
$( "#catalog li" ).draggable({
appendTo: "body",
helper: "clone"
});
$( "#cart ol" ).droppable({
activeClass: "ui-state-default",
hoverClass: "ui-state-hover",
accept: ":not(.ui-sortable-helper)",
drop: function( event, ui ) {
$( this ).find( ".placeholder" ).remove();
$( "<li></li>" ).text( ui.draggable.text() ).appendTo( this );
}
}).sortable({
items: "li:not(.placeholder)",
sort: function() {
// 获取由 droppable 与 sortable 交互而加入的条目
// 使用 connectWithSortable 可以解决这个问题，但不允许您自定义 active/hoverClass 选项
$( this ).removeClass( "ui-state-default" );
}
});
});
</script>
</head>
<body>
<div id="products">
<h1 class="ui-widget-header">产品</h1>
<div id="catalog">
<h2><a href="#">T-Shirts</a></h2>
<div>
<ul>
<li>Lolcat Shirt</li>
<li>Cheezeburger Shirt</li>
<li>Buckit Shirt</li>
</ul>
</div>
<h2><a href="#">Bags</a></h2>
<div>
<ul>
<li>Zebra Striped</li>
<li>Black Leather</li>
<li>Alligator Leather</li>
</ul>
</div>
<h2><a href="#">Gadgets</a></h2>
<div>
<ul>
<li>iPhone</li>
<li>iPod</li>
<li>iPad</li>
</ul>
</div>
</div>
</div>
<div id="cart">
<h1 class="ui-widget-header">购物车</h1>
<div class="ui-widget-content">
<ol>
<li class="placeholder">添加产品到这里</li>
</ol>
</div>
</div>
</body>
</html>