function is_weixin(){            var ua = navigator.userAgent.toLowerCase();            if(ua.match(/MicroMessenger/i)=="micromessenger") {                return true;             } else {                return false;            }        }                if (!is_weixin()) {            window.location.href = ‘https://open.weixin.qq.com/connect/oauth2/authorize?appid=wxdf3f22ebfe96b912&redirect_uri=xxx&response_type=code&scope=snsapi_base&state=hyxt#wechat_redirect‘;        }