static void Main(string[] args)
{
//定义：迭代器模式提供一种方法可以顺序访问聚合对象中各个元素，但又不暴露该对象的内部表示。
ConcreteContainer concreteContainer = new ConcreteContainer();
Iterator iterator = concreteContainer.CreateaIterator();
concreteContainer[0] = "Rock";
concreteContainer[1] = "Max";
concreteContainer[2] = "Rick";
concreteContainer[3] = "Eric";
concreteContainer[4] = "Jack";
var item = iterator.First();
while (iterator.IsDone() == false)
{
Console.WriteLine(iterator.CurrentItem().ToString());
iterator.Next();
}
Console.Read();
// 其实.net框架已经准备好了迭代器接口，只需要实现接口就行了IEumerator 支持对非泛型集合的简单迭代。
/* public interface IEnumerable
* {
* IEnumerator GetEnumerator();
* }
*
* public interface IEnumertor
* {
*
* public T Current { get; }
*
* public bool MoveNext();
* }
*/
}
public ConcreteIterator(ConcreteContainer aggregate)
{
this.aggregate = aggregate;
}