/// <summary>
        /// 发送响应语音识别结果
        /// </summary>
        /// <param name="requestXML"></param>
        private void SendVoiceMsg(RequestXML requestXML)
        {
            string responseContent = FormatTextXMLForVoice(requestXML.ToUserName, requestXML.FromUserName,DateTime.Now.Year.ToString(),"语音下载接口获得", "您刚才说的语音消息识别结果为：" + requestXML.Recognition.ToString(),"123");
            HttpContext.Current.Response.ContentType = "text/xml";
            HttpContext.Current.Response.ContentEncoding = Encoding.UTF8;
            HttpContext.Current.Response.Write(responseContent);
            HttpContext.Current.Response.End();
        }

        /// <summary>
        /// 返回格式化的Xml格式语音内容
        /// </summary>
        private string FormatTextXMLForVoice(string ToUserName, string FromUserName, string  CreateTime, string MediaId, string Recognition,string MsgId)
        {
            return @"<xml><ToUserName><![CDATA["+ToUserName+"]]></ToUserName><FromUserName><![CDATA["+FromUserName+"]]></FromUserName><CreateTime>"+CreateTime+"</CreateTime><MsgType><![CDATA[voice]]></MsgType><MediaId><![CDATA["+MediaId+"]]></MediaId><Format><![CDATA[amr]]></Format><Recognition><![CDATA[{"+Recognition+"}]]></Recognition><MsgId>{"+MsgId+"}</MsgId></xml>";
        }