<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>通过拖拽改变图片大小</title>
<link rel="stylesheet" href="//apps.bdimg.com/libs/jqueryui/1.10.4/css/jquery-ui.min.css">
<style>
#resizable {
100px;
height: 100px;
background: #ccc;
margin: auto;
}
#resizable img {
height: 100%;
100%;
}
</style>
<script src="//apps.bdimg.com/libs/jquery/1.10.2/jquery.min.js"></script>
<script src="//apps.bdimg.com/libs/jqueryui/1.10.4/jquery-ui.min.js"></script>
</head>
<body>
<div id="content">
<div id="resizable">
<img src="img/national.7c84175e.png" />
</div>
</div>
<script>
$("#resizable").resizable();
</script>
</body>
</html>