索引器

 1 using System;

 2 using System.Collections.Generic;

 3 using System.Linq;

 4 using System.Text;

 5 using System.Threading.Tasks;

 6 

 7 namespace ConsoleApplication1

 8 {

 9     class Program

10     {

11         static void Main(string[] args)

12         {

13             var myindex = new MyIndex();

14             myindex[0] = "0";

15             myindex[1] = "1";

16             myindex[2] = "2";

17             myindex[3] = "3";

18             myindex[4] = "4";

19             myindex[5] = "5";

20             myindex[6] = "6";

21             myindex[7] = "7";

22             myindex[8] = "8";

23             myindex[9] = "9";

24             for (int i = 0; i < 10; i++)

25             {

26                 Console.WriteLine(myindex[i]);

27             }

28             Console.ReadLine();

29         }

30     }

31     class MyIndex

32     {

33         private string[] MyString = new string[10];

34         public MyIndex()

35         {

36             for (int i = 0; i < MyString.Length; i++)

37             {

38                 MyString[i] = "N/A";

39             }

40         }

41         public string this[int index]

42         {

43             get

44             {

45                 string tmp;

46                 if (index >= 0 && index < MyString.Length)

47                     tmp = MyString[index];

48                 else

49                     tmp = "";

50                 return tmp;

51             }

52             set

53             {

54                 if (index >= 0 && index < MyString.Length)

55                 {

56                     MyString[index] = value;

57                 }

58             }

59         }

60     }

61 }