// /Demo/TestSendSms?mobile=手机号码

        public ActionResult TestSendSms(string mobile)
        {
            const string DEMO_Mobile   = "15505927595";
            const string DEMO_Receiver = "大健康用户:Test";

            if (!mobile.HasValue())
            {
                mobile = DEMO_Mobile;
            }
            var result = _msgProvider.SendSms(mobile, DEMO_Receiver);

            //注意:请勿随意发送,本接口每调用一次会被收费!
            return(Json(result));
        }