static void Main(string[] args)
{
#region 结构实现
ConcreteAggregate a = new ConcreteAggregate();
a[0] = "Item A";
a[1] = "Item B";
a[2] = "Item C";
a[3] = "Item D";
ConcreteIterator i = a.CreateIterator() as ConcreteIterator;
Console.WriteLine("Iterating over collection:");
object item = i.First();
while (item != null)
{
Console.WriteLine(item);
item = i.Next();
}
#endregion
Console.WriteLine("******************************");
#region 实践应用
Practical.ExtrinsicIterator.Iterator _iterator;
Practical.ExtrinsicIterator.Aggregate _aggregate = new Practical.ExtrinsicIterator.ConcreteAggregate();
// 获得迭代器
_iterator = _aggregate.CreateIterator();
while (!_iterator.IsDone())
{
Console.WriteLine(_iterator.CurrentItem());
_iterator.Next();
}
Practical.IntrinsicIterator.Iterator _iterator1;
Practical.IntrinsicIterator.Aggregate _aggregate1 = new Practical.IntrinsicIterator.ConcreteAggregate();
// 获得迭代器
_iterator1 = _aggregate1.CreateIterator();
while (!_iterator1.IsDone())
{
Console.WriteLine(_iterator1.CurrentItem());
_iterator1.Next();
}
#endregion
Console.ReadKey();
}
