c#匿名种 anonymous

c#匿名类 anonymous

? ? 感谢http://blog.csdn.net/jjx0224/article/details/5887589?

? ? 感谢http://hi.baidu.com/guodong828/blog/item/cc53404ef40af002b3de0500.html

?

? c# 匿名类 上代码：

?

1. using?System;??
2. using?System.Collections.Generic;??
3. using?System.Linq;??
4. using?System.Text;??
5. ??
6. namespace?ConsoleApplication1??
7. {??
8. ????///?<summary>??
9. ????///?作者：it小金??
10. ????///?作用：匿名类型的使用??
11. ????///?说明：var?关键字，用于表示隐式类型化的变量。var?与new?关键字一起使用时，可以创建匿名类型。??
12. ????///?</summary>??
13. ????class?Program??
14. ????{??
15. ????????static?void?Main(string[]?args)??
16. ????????{??
17. ????????????var?a?=?new?{?name?=?"it小金",?age?=?24?};//匿名类型只是一个继承了Object?的、没有名称的类。该类的定义从初始化器中推断，类似于隐式类型化的变量。??
18. ????????????//a.name="hh";这是错误的，不能对属性进行赋值，因为name是a中的一个属性，且它为只读的??
19. ????????????string?b?=?a.name.ToString();??
20. ????????????int?c?=?a.age;??
21. ????????????Console.WriteLine(b);??
22. ????????????Console.WriteLine(c);??
23. ????????????Console.Read();??
24. ????????}??
25. ????}??
26. } ?

public T CastAnonymous<T>(object anonymous, T anonymousType){　　return (T)anonymous;}class User{　　public string Name { get; set; }}public static void Main(){　　var u = new User{ Name = "Lucifer" };　　var a = new { a = 26, Name = u.Name, b = false };　　Print(a);}public void Print(object anonymous){　　var a = CastAnonymous(anonymous, new { a=0, Name = "", b = false });　　Console.WriteLine{"{0} - {1} - {2}", a.a, a.Name, a.b};}