OpenInstall实现APP无邀请码推广

    <script type="text/javascript">
        var data = OpenInstall.parseUrlParams();//openinstall.js中提供的工具函数，解析url中的所有查询参数
        new OpenInstall({
            appKey: ‘@(appKey)‘,
            preferWakeup: true,
            onready: function () {
                var m = this, button = document.getElementById("downloadButton"), downApp = document.getElementsByClassName("downapp");
                button.style.visibility = "visible";
                button.onclick = function () { check(m); }
                for (var i = 0; i < downApp.length; i++) {
                    var btn = downApp[i];
                    btn.onclick = function () {
                        check(m);
                    }
                }
            }
        }, data);

        function check(obj) {
            var ua = navigator.userAgent.toLowerCase(),
                iphoneos = (ua.match(/iphone os/i) == "iphone os") || (ua.match(/iph os/i) == "iph os") || (ua.match(/ipad/i) == "ipad");
            var guid = document.querySelector(‘.guid‘);
            if (iphoneos) {
                location.href = "/Home/IOSDownLoad";
            }
            else {
                /*在app已安装的情况尝试拉起app*/
                obj.schemeWakeup();
                /*用户点击某个按钮时(假定按钮id为downloadButton)，安装app*/
                obj.wakeupOrInstall();
                return false;
            }
        }
    </script>