HTML5截图功能 可拖拽图片

用法简介

       文件引用

<link rel="stylesheet" type="text/css" href="css/normalize.css">
<link rel="stylesheet" type="text/css" href="css/demo.css">

<!--必要样式-->
<link rel="stylesheet" type="text/css" href="css/component.css">

<script type="text/javascript" src="js/jquery-2.1.1.min.js"></script>
<script type="text/javascript" src="js/component.js"></script>

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