function is_weixinOrAli(){
            var ua = navigator.userAgent.toLowerCase(); //判斷瀏覽器的型別
            if (ua.match(/MicroMessenger/i) != "micromessenger" && ua.match(/Aplipay/i) != "aplipay") {
                // 如果不是微信內建瀏覽器,或支付寶內建瀏覽器，就動態跳轉到以下頁面
                window.location.href = "http:www.baidu.com";
                
 
//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';
            } 
        }