wechat_share.html

<!DOCTYPE html>
<html>
<head>
    <title>Share:title</title>
    <script type="text/javascript">
        function getQueryVariable(variable) {
            var query = window.location.search.substring(1);
            var vars = query.split("&");
            for (var i = 0; i < vars.length; i++) {
                var pair = vars[i].split("=");
                if (pair[0] == variable) {
                    return pair[1];
                }
            }
            return (false);
        }

        document.title = "WeChat Share: " + decodeURI(getQueryVariable('title'))
    </script>
    <style>
        .main {
            /*text-align: center; !*让div内部文字居中*!*/
            background-color: #fff;
            border-radius: 20px;
            width: 300px;
            height: 350px;
            margin: auto;
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
        }
    </style>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
    <meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=no"/>
    <script type="text/javascript" src="/assets/js/jquery-2.1.3.min.js"></script>
    <script type="text/javascript" src="/assets/js/qrcode.min.js"></script>
</head>
<body>
<div id="qrcode" class="main">
</div>
<script type="text/javascript">
    new QRCode(document.getElementById("qrcode"), getQueryVariable('url'));  // 生成二维码
</script>
</body>
</html>