<script type="text/javascript" src="http://www.mamicode.com/site_media/js/qrcode.js"></script>
   // 生成二维码
    $(".qrcode").each(function(){
        var timestamp = new Date().getTime() + Math.random().toString().split(".")[1];  // 时间戳 + 随机数
        $(this).attr("id", timestamp);
        var q_type = $(this).attr("data-type");
        var q_id = $(this).attr("data-id");
        var qrcode_text = "http://www.domain.cn/qr/?type="+q_type+"&id="+q_id;

        var qrcode = new QRCode(timestamp, {
            width: 140,
            height: 140,
            colorDark: ‘#000000‘,
            colorLight: ‘#ffffff‘,
            correctLevel: QRCode.CorrectLevel.L
        });
        qrcode.makeCode(qrcode_text);
    });