Pattern in dotnet Framework source code (III)--iteartor (iterator mode)

Provides a way to access each element of an aggregate object sequentially without exposing the internal representation of that object.

Take classes in the. NET Framework 2.0 System.Collections as examples

　

System.Collections. IEnumerable

Public interface IEnumerable

{

IEnumerator GetEnumerator ();

}

System.Collections.ICollection

Public interface icollection:ienumerable

{

int Count {get;}

BOOL issynchronized {get;}

Object SyncRoot {get;}

void CopyTo (array array, int index);

}