//二维码：
<script type="text/javascript" src="http://www.mamicode.com/{:C(‘PUBLIC_PATH‘)}js/qrcode.min.js"></script>
<script type="text/javascript" src="http://www.mamicode.com/{:C(‘PUBLIC_PATH‘)}js/qrcode.js"></script>

<div id="qrcode"></div> //可以更换img标签

<script>
var http = "{$mn_data[‘http‘]}"; //链接用于后台输出
var qrcode = new QRCode(‘qrcode‘, {
text: http,
width: 100,
height: 100,
colorDark : ‘#000000‘,
colorLight : ‘#ffffff‘,
correctLevel : QRCode.CorrectLevel.H
});
</script>

二维码