[RoutePrefix("GzhTest")]
    public class MyLearnController : ApiController
    {
        private static readonly Regex ToUserNameReg = new Regex(@"(?<=<ToUserName><!\[CDATA\[).*?(?=\]\]></ToUserName>),RegexOptions.Compiled);
        readonly Regex FromUserNameReg = (?<=<FromUserName><!\[CDATA\[).*?(?=\]\]></FromUserName>)readonly Regex CreateTimeReg = (?<=<CreateTime>)\d*?(?=</CreateTime>)readonly Regex MsgTypeReg = (?<=<MsgType><!\[CDATA\[).*?(?=\]\]></MsgType>)readonly Regex ContentReg = (?<=<Content><!\[CDATA\[).*?(?=\]\]></Content>)readonly Regex MsgIdReg = (?<=<MsgId>)\d*?(?=</MsgId>)readonly Regex EventReg = (?<=<Event><!\[CDATA\[).*?(?=\]\]></Event>)readonly Regex EventKeyReg = (?<=<EventKey><!\[CDATA\[).*?(?=\]\]></EventKey>)/// <summary>
        /// 获取消息体中正则所能匹配到的内容
        </summary>
        <param name="message">消息内容</param>
        <param name="regex">正则<returns>返回正则匹配的所有内容</returns>
        string GetItemValue(string message,Regex regex)
        {
            if (regex.IsMatch(message))
                return regex.Match(message).Value;
            return "";
        }
 接受微信消息，如果需要反馈，则调用回复接口进行答复
        <param name="ToUserName">开发者微信号<param name="FromUserName">发送方帐号（一个OpenID）<param name="CreateTime">消息创建时间 （整型）<param name="MsgType">text<param name="Content">文本消息内容<param name="MsgId">消息id，64位整型successful or not</returns>
        [HttpPost]
        [Route(Check)]
        public HttpResponseMessage ReceiveMessage()
        {
            var message = Request.Content.ReadAsStringAsync().Result;

            var toUserName = GetItemValue(message,ToUserNameReg);
            var fromUserName =var createTime =var msgType =var content =var msgId =var eventStr =var eventKey =var logStr = string.Format(Message:{8}\n\nToUserName:{0}\nFromUserName:{1}\nCreateTime:{2}\nMsgType:{3}\nContent:{4}\nMsgId:{5}\nEvent:{6}\nEventKey:{7}//logger.Debug(logStr);
            Log.WriteLog(接受数据);
            Log.WriteLog(fromUserName);
            Log.WriteLog(toUserName);
            switch (msgType)
            {
                case :
                    {
                        var returnMessage = content;　  这块是获取反馈信息的方法，你的和我的应该不一样，所以这块你得修改一下。
                        var sendMessage = GetSendMessage(fromUserName,returnMessage,toUserName);
                        logger.Debug("MsgId:" + msgId + Environment.NewLine + sendMessage);
                        Log.WriteLog(发送数据);  
                        Log.WriteLog(sendMessage);

                        return GetReturn(sendMessage);　　　　　　　　 这个函数在上面已经贴出来了，在这块就不在贴了
                    }
                eventif (eventStr == subscribe")　　　　　　 关注事件
                        {
                            var returnMessage = 欢迎关注**账号 [微笑];
                             GetReturn(sendMessage);
                        }
                        return GetReturn(error);
                    }
                default:
                    );
            }
        }
 发送被动响应消息
        接收方帐号（收到的OpenID）回复的消息内容（换行：在content中能够换行，微信客户端就支持换行显示）<returns></returns>
        string GetSendMessage(string ToUserName,string Content,1)">string FromUserName,1)">string MsgType = )
        {
             ConvertDateTimeInt(DateTime.Now);

            return
                <xml><ToUserName><![CDATA[{0}]]></ToUserName><FromUserName><![CDATA[{1}]]></FromUserName><CreateTime>{2}</CreateTime><MsgType><![CDATA[{3}]]></MsgType><Content><![CDATA[{4}]]></Content></xml> datetime转换为unixtime
         将时间类型转换为整形
        <param name="time"></param>
        int ConvertDateTimeInt(System.DateTime time)
        {
            System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970,1,1)">1));
            return (int)(time - startTime).TotalSeconds;
        }
static HttpResponseMessage GetReturn( message)
        {
            return new HttpResponseMessage
            {
                Content = new StringContent(message,Encoding.UTF8,1)">text/html)
            };
        }
}