C# Dynamic动态对象

1、ExpandoObject

  dynamic expObj = new ExpandoObject();
             expObj.FirstName = "Daffy";
             expObj.LastName = "Duck";
             Console.WriteLine(expObj.FirstName + " " + expObj.LastName);
             Func<DateTime, string> GetTomorrow = today => today.AddDays().ToShortDateString();
             expObj.GetTomorrowDate = GetTomorrow;
             Console.WriteLine("Tomorrow is {0}", expObj.GetTomorrowDate(DateTime.Now));

             expObj.Friends = new List<Person>();
             expObj.Friends.Add(new Person() { FirstName = "Bob", LastName = "Jones" });
             expObj.Friends.Add(new Person() { FirstName = "Robert", LastName = "Jones" });
             expObj.Friends.Add(new Person() { FirstName = "Bobby", LastName = "Jones" });

             foreach (Person friend in expObj.Friends)
             {
                 Console.WriteLine(friend.FirstName + "  " + friend.LastName);
             }

2、DynamicObject

 class CusDynamicObject : DynamicObject
     {
         Dictionary<string, object> _dynamicData = new Dictionary<string, object>();

         public override bool TryGetMember(GetMemberBinder binder, out object result)
         {
             bool success = false;
             result = null;
             if (_dynamicData.ContainsKey(binder.Name))
             {
                 result = _dynamicData[binder.Name];
                 success = true;
             }
             else
                 result = "Property Not Found!";

             return success;
         }

         public override bool TrySetMember(SetMemberBinder binder, object value)
         {
             _dynamicData[binder.Name] = value;
             return true;
         }

         public override bool TryInvokeMember(InvokeMemberBinder binder, object[] args, out object result)
         {
             dynamic method = _dynamicData[binder.Name];
             result = method((DateTime)args[]);
             return result != null;
         }

     }