using System;namespace 遍历{ internal class PRogram { private static void Main() { var numbers=new[]{1,2,3,4,5,6}; foreach (var number in numbers) { Console.WriteLine(number); } //GetEnumerator()返回IEnumerator,数组实现了IEnumerator接口，数组引用转换为IEnumerator引用， var enumerator = numbers.GetEnumerator(); while (enumerator.MoveNext()) { var number = enumerator.Current; Console.WriteLine(number); } //数组实现了IDisposable接口，数组引用转换为IDisposable引用 var disposable = enumerator as IDisposable; if (disposable !=null) { disposable.Dispose(); } Console.ReadKey(); } }}
