对象初始化器和集合初始化器，类似自动属性，一种省事的写法，参见下例绿色部分：
1 namespace Demo 2 { 3 class Program 4 { 5 static void Main(string[] args) 6 { 7 //以前我们可能这么写 8 //对象 9 Person p1 = new Person(); 10 p1.Name = "Joey"; 11 p1.Age = 25; 12 //集合 13 List<Person> ps1 = new List<Person>(); 14 Person joey = new Person(); 15 joey.Name = "joey"; 16 joey.Age = 25; 17 Person zhangSan = new Person(); 18 zhangSan.Name = "ZhangSan"; 19 zhangSan.Age = 18; 20 //然后加入集合 21 ps1.Add(joey); 22 ps1.Add(zhangSan); 23 //数组 24 int[] a1 = new int[3]; 25 a1[0] = 1; 26 a1[1] = 2; 27 a1[2] = 3; 28 29 //有了初始化器后 我们可以这么写 30 //对象 31 var p2 = new Person { Name = "Joey", Age = 25 }; 32 33 //集合 34 var ps2 = new List<Person> { 35 new Person{ Name="Joey", Age=25 }, 36 new Person{Name="ZhangSan", Age=18 } 37 }; 38 //数组 39 var a2 = new int[] { 1, 2, 3 }; 40 } 41 } 42 43 public class Person 44 { 45 public int ID { get; private set; } 46 47 public string Name { get; set; } 48 public int Age { get; set; } 49 50 } 51 }