Visual C# 2010 Recipes A Problem-Solution Approach 代码4——创建ExpandoObject Dynamic Type

此代码具有明显的动态语言风格，可以在此感叹一下C#4.0在动态语言特性上的巨大增强

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Dynamic;namespace Apress.VisualCSharpRecipes.Chapter01{ public class Recipe01_19 { static void Main(string[] args) { // create the expando dynamic expando = new ExpandoObject(); expando.Name = "Joe Smith"; expando.Age = 42; expando.Family = new ExpandoObject(); expando.Family.Father = "Pa Smith"; expando.Family.Mother = "Ma Smith"; expando.Family.Brother = "Pete Smith"; // access the members of the dynamic type Console.WriteLine("Name: {0}", expando.Name); Console.WriteLine("Age: {0}", expando.Age); Console.WriteLine("Father: {0}", expando.Family.Father); Console.WriteLine("Mother: {0}", expando.Family.Mother); Console.WriteLine("Brother: {0}", expando.Family.Brother); // change a value expando.Age = 44; // add a new property expando.Family.Sister = "Kathy Smith"; Console.WriteLine("/nModified Values"); Console.WriteLine("Age: {0}", expando.Age); Console.WriteLine("Sister: {0}", expando.Family.Sister); Console.WriteLine("Main method complete. Press Enter."); Console.ReadLine(); } }}