public async Task <dynamic> SendMessage(string PhoneNumbers, string SignName, string TemplateCode, string TemplateParam)
        {
            var res = await _tencentSmsClient.SendSms(new SendSmsRequest
            {
                //PhoneNumberSet = PhoneNumbers,
                //Sign = SignName,
                //TemplateID = TemplateCode,
                //TemplateParamSet = TemplateParam
            });

            return(res);
        }
        public async Task SendSms()
        {
            var result = await _client.SendSms(new SendSmsRequest()
            {
                PhoneNumberSet = new string [] { "18650482503" },
                TemplateID     = "SMS_192821653",
                //SignName = "┬■═Т",
                //TemplateParam = "{'code':'2345'}"
            });

            //Assert.Equal("OK", result.Code);
        }