1 namespace Test
 2 {
 3     class A
 4     {
 5         private int _id;
 6         private string _text;
 7         public int Id
 8         {
 9             get { return _id; }
10             set { _id = value; }
11         }
12         public string Text
13         {
14             get { return _text; }
15             set { _text = value; }
16         }
17         public A() { }
18     }
19     class B
20     {
21         private int _id;
22         private string _text;
23         public int Id
24         {
25             get { return _id; }
26             set { _id = value; }
27         }
28         public string Text
29         {
30             get { return _text; }
31             set { _text = value; }
32         }
33         public B() { }
34         public B(int _id, string _text)
35         {
36             this.Id = _id;
37             this._text = _text;
38         }
39     }
40     class C
41     {
42         public int Id;
43         public string Text;
44     }
45     class Program
46     {
47         static void Main(string[] args)
48         {
49             //第一种情况的类这样给变量赋值
50             A a = new A();
51             a.Id = 1;
52             a.Text = "A";
53             //第二种情况的类这样给变量赋值
54             B b = new B(2,"B");
55             //第三种情况的类这样给变量赋值
56             C c = new C() { 
57             Id=3,
58             Text="C",
59             };
60         }
61     }
62     
63 }