主讲：李建忠

来源：

 

 

1:  public interface IEnumerable

2:  {

3:      IEnumerator GetEnumerator();

4:  }

5:   

6:  public interface IEnumerator

7:  {

8:      Object Current {get;}

9:      bool Movenext();

10:      void Reset();

11:  }

12:   

13:  private class MyEnumerator: IEnumerator

14:  {

15:      int nIndex;

16:      MyCollection collection;

17:   

18:      public MyEnumerator(MyCollection coll)

19:      {

20:          collection=coll;

21:          nIndex=-1;

22:      }

23:   

24:      public bool MoveNext()

25:      {

26:          nIndex++;

27:          return (nIndex

28:      }

29:   

30:      public int Current

31:      {

32:          get

33:          {

34:              return (collection.items[nIndex]);

35:          }

36:      }

37:   

38:      public void Reset()

39:      {

40:          nIndex=-1;

41:      }

42:  }