//生产二维码

            $("#qrcodeCanvas").qrcode({

                render: "canvas",    //设置渲染方式，有table和canvas，使用canvas方式渲染性能相对来说比较好

                text: location.href,    //扫描二维码后显示的内容,可以直接填一个网址，扫描二维码后自动跳向该链接

                width: "100",               //二维码的宽度

                height: "100",              //二维码的高度

                background: "#ffffff",       //二维码的后景色

                foreground: "#000000",        //二维码的前景色

                src: ''             //二维码中间的图片

            });

        jQuery('#qrcode_app').qrcode({

            render: "canvas",

            text: '@(app_positionQr)',

            width: 100,

            height: 100,

            background: "#ffffff",       //二维码的后景色

            foreground: "#000000",        //二维码的前景色

            src: ''

        });

                <ul class="xxx-firmhome-operationPic" style="float: right;  margin: 23px;

    text-indent: 2px;">

                    <!--分享举报收藏-->

                    <li class="wechat">

                        <a href="javascript:void(0);">小程序中打开</a>

                        <div class="pull"><img src="@wechat_QRCode"></div>

                    </li>

                    <li class="tjapp">

                        <a href="javascript:void(0);">app中打开</a>

                        <div class="pull"><div id="qrcode_app" class="qrcode"></div></div>

                    </li>

                </ul>

        .qrcode {

            display: block;

            width: 100px;

            height: 100px;

            border: 2px solid #ff8502;

            background-color: #fff;

            padding: 10px;

            margin-top: 10px;

        }

.xxx-firmhome-operationPic li.tjapp {position: relative;}

.xxx-firmhome-operationPic li.tjapp a{ background:url(../images/firmhome/comProfile-name-pic5.png) no-repeat left top;}

.xxx-firmhome-operationPic li.tjapp .pull { 
　　width: 120px; height: 130px; background:url(../images/firmhome/comProfile-top-operationPic-share-pic.png) no-repeat 82px top; position: absolute; right: -7px; top: 24px; display: none; z-index: 1; }