using System;namespace 遍歷{ 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,數組實現了IEnumerator接口，數組引用轉換為IEnumerator引用， var enumerator = numbers.GetEnumerator(); while (enumerator.MoveNext()) { var number = enumerator.Current; Console.WriteLine(number); } //數組實現了IDisposable接口，數組引用轉換為IDisposable引用 var disposable = enumerator as IDisposable; if (disposable !=null) { disposable.Dispose(); } Console.ReadKey(); } }}
