/// <summary>
  /// 基礎消息內(nèi)容
  /// </summary>
  [XmlRoot(ElementName = "xml")]
  public class BaseMessage
  {
    /// <summary>
    /// 初始化一些內(nèi)容，如創(chuàng)建時間為整形，
    /// </summary>
    public BaseMessage()
    {
      this.CreateTime = DateTime.Now.DateTimeToInt();
    }

    /// <summary>
    /// 開發(fā)者微信號
    /// </summary>
    public string ToUserName { get; set; }

    /// <summary>
    /// 發(fā)送方帳號（一個OpenID）
    /// </summary>
    public string FromUserName { get; set; }

    /// <summary>
    /// 消息創(chuàng)建時間 （整型）
    /// </summary>
    public int CreateTime { get; set; }

    /// <summary>
    /// 消息類型
    /// </summary>
    public string MsgType { get; set; }

    public virtual string ToXml()
    {
      this.CreateTime = DateTime.Now.DateTimeToInt();//重新更新
      return MyXmlHelper.ObjectToXml(this);
    }

  }

  /// <summary>
  /// 回復文本消息
  /// </summary>
  [System.Xml.Serialization.XmlRoot(ElementName = "xml")]
  public class ResponseText : BaseMessage
  {
    public ResponseText()
    {
      this.MsgType = ResponseMsgType.Text.ToString().ToLower();
    }

    public ResponseText(BaseMessage info) : this()
    {
      this.FromUserName = info.ToUserName;
      this.ToUserName = info.FromUserName;
    }

    /// <summary>
    /// 內(nèi)容
    /// </summary>    
    public string Content { get; set; }
  }

  /// <summary>
  /// 回復圖文消息
  /// </summary>
  [System.Xml.Serialization.XmlRoot(ElementName = "xml")]
  public class ResponseNews : BaseMessage
  {
    public ResponseNews()
    {
      this.MsgType = ResponseMsgType.News.ToString().ToLower();

      this.Articles = new List<ArticleEntity>();
    }
    public ResponseNews(BaseMessage info) : this()
    {
      this.FromUserName = info.ToUserName;
      this.ToUserName = info.FromUserName;
    }

    /// <summary>
    /// 圖文消息個數(shù)，限制為10條以內(nèi)
    /// </summary>
    public int ArticleCount
    {
      get
      {
        return this.Articles.Count;
      }
      set
      {
        ;//增加這個步驟才出來XML內(nèi)容
      }
    }

    /// <summary>
    /// 圖文列表。
    /// 多條圖文消息信息，默認第一個item為大圖,注意，如果圖文數(shù)超過10，則將會無響應
    /// </summary>
    [System.Xml.Serialization.XmlArrayItem("item")]
    public List<ArticleEntity> Articles { get; set; }

  }

ResponseText response = new ResponseText(info);
response.Content = "抱歉，此功能暫未開通。";
result = response.ToXml();

 /// <summary>
    /// 訂閱或者顯示公司信息
    /// </summary>
    /// <param name="info"></param>
    /// <returns></returns>
    private string ShowCompanyInfo(BaseMessage info)
    {
      string result = "";
      //使用在微信平臺上的圖文信息(單圖文信息)
      ResponseNews response = new ResponseNews(info);
      ArticleEntity entity = new ArticleEntity();
      entity.Title = "廣州愛奇迪軟件科技有限公司";
      entity.Description = "歡迎關(guān)注廣州愛奇迪軟件--專業(yè)的單位信息化軟件和軟件開發(fā)框架提供商，我們立志于為客戶提供最好的軟件及服務。\r\n";
      entity.Description += "我們是一家極富創(chuàng)新性的軟件科技公司，從事研究、開發(fā)并銷售最可靠的、安全易用的技術(shù)產(chǎn)品及優(yōu)質(zhì)專業(yè)的服務，幫助全球客戶和合作伙伴取得成功。\r\n......（此處省略1000字，哈哈）";
      entity.PicUrl = "http://www.iqidi.com/WeixinImage/company.png";
      entity.Url = "http://www.iqidi.com";

      response.Articles.Add(entity);
      result = response.ToXml();

      return result;
    }