创建HTML文件，CSS文件和JavaScript文件，并引入jquery。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="full-screen" content="yes">
<meta name="browsermode" content="application">
<meta name="x5-orientation" content="portrait">
<title>圆形进度条加载</title>
</head>
<link rel="stylesheet" href="/go.html?url=css/circle.css">
<body>
<div class="periphery">
<canvas id="circleCanvas" width="200" height="200"></canvas>
<!--请用img标签添加图片资源进行测试，越多越好，为避免看不到效果请把canvas层级调高-->
<img src='a.jpg'/>
<img src='a.jpg'/>
<img src='a.jpg'/>
<img src='a.jpg'/>
</div>
<script type="text/javascript" src="js/jquery-2.1.0.js" ></script>
<script type="text/javascript" src="js/circle.js" ></script>
</body>
</html>
<!
