这个demo展示的效果为：从上面可以拖动到下面相应的框中（原有的不能再拖动），拖动框中的东西到外面可以取消
———–以下为HTML
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title></title>
<link rel="stylesheet" type="text/css" href="css/bootstrap-3.3.5/css/bootstrap.min.css" rel="external nofollow" >
<link rel="stylesheet" type="text/css" href="css/easyui.css" rel="external nofollow" >
<link rel="stylesheet" type="text/css" href="css/icon.css" rel="external nofollow" >
<link rel="stylesheet" href="css/demo.css" rel="external nofollow" >
</head>
<body>
<div class="container">
<ul class="items">
<li class="category">
<i></i>
<span>品类</span>
</li>
<li class="factory">
<i></i>
<span>工厂</span>
</li>
<li class="with-high">
<i></i>
<span>跟高</span>
</li>
<li class="with-type">
<i></i>
<span>跟型</span>
</li>
<li class="price">
<i></i>
<span>单价</span>
</li>
</ul>
<div class="target">
<div class="target-cascade">
<span>级联统计指标</span>
<ul>
</ul>
</div>
<div class="target-column">
<span>列指标</span>
<ul>
</ul>
</div>
</div>
</div>
<script src="js/jquery.js"></script>
<script src="js/jquery.easyui.min.js"></script>
<script src="js/demo.js"></script>
</body>
</html>
————-以下为js代码
var tab = [];
$('.items li').draggable({
proxy: 'clone',
revert: true
});
// 级联统计指标放置区
$('.target-cascade').droppable({
onDragEnter: function(e,source){
$(this).css('border','1px solid red');
},
onDragLeave: function(e,source){
$(this).css('border','1px solid black');
},
onDrop: function(e,source){
// 判断拖动的元素是否存在于放置区内
if($(source).draggable('options').proxy === 'clone'){
// 禁用拖动
NotDrag(source);
// 将拖入元素的原位置记录下来
var buttonName = $(source).find('span').html();
console.log("--------"+$(source).index());
