在任意的 DOM 元素上启用 draggable 功能。通过鼠标点击并在视区中拖动来移动 draggable 对象。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 拖动(Draggable) - 默认功能</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>
#draggable { width: 150px; height: 150px; padding: 0.5em; }
</style>
<script>
$(function() {
$( "#draggable" ).draggable();
});
</script>
</head>
<body>
<div id="draggable" class="ui-widget-content">
<p>请拖动我!</p>
</div>
</body>
</html>