遍历一个类中的每一个属性、方法、公共字段

//获取对象类型  
  Type   t   =   obj.GetType();  
  //获取类的属性  
  PropertyInfo[]   propertys   =   t.GetProperties();   
  foreach   (System.Reflection.PropertyInfo   pro   in   propertys)  
  {  
  string   fieldName     =   pro.Name;  
  object   fieldValue   =   pro.GetValue(o,null);

Response.Write(fieldName    +fieldValue  +"<br/>");  

}

 //获取类的方法

 foreach(MethodInfo   mif   in   t.GetMethods())  
  {  
  Response.Write(mif.Name+"<br/>");  
  }  

//获取类的公共字段：

            FieldInfo[] fields = t.GetFields();
            foreach (FieldInfo fieldInfo in fields)
            {
                ptype.Append("fieldInfo.Name：" + fieldInfo.Name + "<br />");
                ptype.Append("fieldInfo.Value：" + fieldInfo.GetValue(fieldInfo) + "<br />");
            }

public class MemCacheKey
    {
        /// <summary>
        /// 全部同城在线人数列表
        /// </summary>
        public const string OnlineCityUserList = "mlg2010OnlineUserList";
        /// <summary>
        ///  全部同城在线人扩展属性（2.0）列表
        /// </summary>
        public const string OnlineCityUserExList = "mlg2010OnlineUserExList";
        /// <summary>
        /// 最新唠叨Top5
        /// </summary>
        public const string NewsChatTop5 = "mlg2010NewsChatTop5";
        /// <summary>
        /// 最新唠叨
        /// </summary>
        public const string NewsChatList = "mlg2010NewsChatList";
        /// <summary>
        /// 最热唠叨
        /// </summary>
        public const string HotChatList = "mlg2010HotChatList";
        /// <summary>
        /// 最新5条日记
        /// </summary>
        public const string NewsTop5DiaryList = "mlg2010NewsDiaryTop5List";
        /// <summary>
        /// 最新日记列表
        /// </summary>
        public const string NewsDiaryList = "mlg2010NewsDiaryList";
        /// <summary>
        /// 最热日记
        /// </summary>
        public const string HotDiaryList = "mlg2010HotDiaryList";
        /// <summary>
        /// 最新照片
        /// </summary>
        public const string NewsPhotoList = "mlg2010NewsPhotoList";
        /// <summary>
        /// 最热照片
        /// </summary>
        public const string HotPhotoList = "mlg2010HotPhotoList";
        /// <summary>
        /// 用户的唠叨
        /// </summary>
        public const string HotChatByPingcoId = "mlg2010HotChatListByPingcoId";
        /// <summary>
        /// 用户的日记列表
        /// </summary>
        public const string HotDiaryByPingcoId = "mlg2010HotDiaryListByPingcoId";
        /// <summary>
        /// 用户照片
        /// </summary>
        public const string HotPhotoByPingcoId = "mlg2010HotPhotoListByPingcoId";
        /// <summary>
        /// 首页栏目分类
        /// </summary>
        public const string MlgIndexSort = "mlg2010IndexSort";
        /// <summary>
        /// 首页信息列表
        /// </summary>
        public const string MlgIndexList = "mlg2010IndexList";

        public const string MlgNewsFeedsTop5List = "mlg2010IndexNewsFeedsTop5List";
        /// <summary>
        /// 信息
        /// </summary>
        public const string MlgNewsInfo = "mlg2010NewsInfo";
        /// <summary>
        /// 按被顶、回复次数
        /// </summary>
        public const string BestChatOrDiaryList = "mlg2010BestChatOrDiaryList";
        /// <summary>
        /// 首页友友秀
        /// </summary>
        public const string IndexYyxString = "mlg2010IndexYyxString";
        /// <summary>
        /// 友友秀
        /// </summary>
        public const string YyxList = "mlg2010YyxList";
        /// <summary>
        /// 新人
        /// </summary>
        public const string NewUserList = "mlg2010NewUserList";
        /// <summary>
        /// 交友广播
        /// </summary>
        public const string NewsNoticeList = "mlg2010NewsNoticeList";
    }

--------

输出：

fieldInfo.Name：OnlineCityUserList
fieldInfo.Value：mlg2010OnlineUserList
fieldInfo.Name：OnlineCityUserExList
fieldInfo.Value：mlg2010OnlineUserExList
fieldInfo.Name：NewsChatTop5
fieldInfo.Value：mlg2010NewsChatTop5
fieldInfo.Name：NewsChatList
fieldInfo.Value：mlg2010NewsChatList
fieldInfo.Name：HotChatList
fieldInfo.Value：mlg2010HotChatList
fieldInfo.Name：NewsTop5DiaryList
fieldInfo.Value：mlg2010NewsDiaryTop5List
fieldInfo.Name：NewsDiaryList
fieldInfo.Value：mlg2010NewsDiaryList
fieldInfo.Name：HotDiaryList
fieldInfo.Value：mlg2010HotDiaryList
fieldInfo.Name：NewsPhotoList
fieldInfo.Value：mlg2010NewsPhotoList
fieldInfo.Name：HotPhotoList
fieldInfo.Value：mlg2010HotPhotoList
fieldInfo.Name：HotChatByPingcoId
fieldInfo.Value：mlg2010HotChatListByPingcoId
fieldInfo.Name：HotDiaryByPingcoId
fieldInfo.Value：mlg2010HotDiaryListByPingcoId
fieldInfo.Name：HotPhotoByPingcoId
fieldInfo.Value：mlg2010HotPhotoListByPingcoId
fieldInfo.Name：MlgIndexSort
fieldInfo.Value：mlg2010IndexSort
fieldInfo.Name：MlgIndexList
fieldInfo.Value：mlg2010IndexList
fieldInfo.Name：MlgNewsFeedsTop5List
fieldInfo.Value：mlg2010IndexNewsFeedsTop5List
fieldInfo.Name：MlgNewsInfo
fieldInfo.Value：mlg2010NewsInfo
fieldInfo.Name：BestChatOrDiaryList
fieldInfo.Value：mlg2010BestChatOrDiaryList
fieldInfo.Name：IndexYyxString
fieldInfo.Value：mlg2010IndexYyxString
fieldInfo.Name：YyxList
fieldInfo.Value：mlg2010YyxList
fieldInfo.Name：NewUserList
fieldInfo.Value：mlg2010NewUserList
fieldInfo.Name：NewsNoticeList
fieldInfo.Value：mlg2010NewsNoticeList