<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>js 动态生成二维码图片</title>
<script type="text/javascript" src="QRCode.js" ></script>
</head>
<body>
<div id="qrcode" style="width:200px; height:200px;position: fixed;bottom: 40%; right: 20%;"></div>
<script type="text/javascript">
var qrcode = new QRCode(document.getElementById("qrcode"), {
width : 200,
height : 200
});
//输入你要生成的链接
var QRCodeUrl='http://onestopweb.iteye.com/';
qrcode.makeCode(QRCodeUrl);
</script>
</body>
</html>
效果图：
PS:兼容IE6，火狐，谷歌，欧朋，苹果。