public static string sendSMS(string mobile)
        {
            IClientProfile profile = DefaultProfile.GetProfile("cn-hangzhou", accessKeyId, accessKeySecret);

            DefaultProfile.AddEndpoint("cn-hangzhou", "cn-hangzhou", product, domain);
            IAcsClient     acsClient = new DefaultAcsClient(profile);
            SendSmsRequest request   = new SendSmsRequest();

            try
            {
                //必填:待发送手机号。支持以逗号分隔的形式进行批量调用,批量上限为1000个手机号码,批量调用相对于单条调用及时性稍有延迟,验证码类型的短信推荐使用单条调用的方式
                request.PhoneNumbers = mobile;
                //必填:短信签名-可在短信控制台中找到
                request.SignName = "美好食";
                //必填:短信模板-可在短信控制台中找到
                request.TemplateCode = "SMS_126290084";
                //可选:模板中的变量替换JSON串,如模板内容为"亲爱的${name},您的验证码为${code}"时,此处的值为
                request.TemplateParam = "{\"code\":\"" + ConvertJson.randomCode() + "\"}";
                //可选:outId为提供给业务方扩展字段,最终在短信回执消息中将此值带回给调用者
                // request.OutId = "yourOutId";
                //请求失败这里会抛ClientException异常
                SendSmsResponse sendSmsResponse = acsClient.GetAcsResponse(request);
                //  return sendSmsResponse.Message;
                string json = "";
                if (sendSmsResponse.Message == "OK")
                {
                    json = "{\"data\":\"发送成功\"}";
                }
                else
                {
                    json = "{\"data\":\"" + sendSmsResponse.Message + "\"}";
                }
                return(json);
            }
            catch (ServerException e)
            {
                return("发送失败!");
            }
        }