如何獲取 C# 中整個 ArrayList 的列舉器?
要獲取 C# 中整個 ArrayList 的列舉器,程式碼如下 -
示例
using System; using System.Collections; public class Demo { public static void Main(String[] args) { ArrayList list1 = new ArrayList(); list1.Add("A"); list1.Add("B"); list1.Add("C"); list1.Add("D"); list1.Add("E"); list1.Add("F"); list1.Add("G"); list1.Add("H"); list1.Add("I"); Console.WriteLine("Elements in ArrayList1..."); foreach (string res in list1) { Console.WriteLine(res); } ArrayList list2 = new ArrayList(); list2.Add("A"); list2.Add("B"); list2.Add("C"); list2.Add("D"); list2.Add("E"); list2.Add("F"); list2.Add("G"); list2.Add("H"); list2.Add("I"); Console.WriteLine("Elements in ArrayList2..."); foreach (string res in list2) { Console.WriteLine(res); } Console.WriteLine("Count of elements in ArrayList2 = " + list2.Count); list2.RemoveAt(5); Console.WriteLine("Count of elements in ArrayList2 (Updated) = " + list2.Count); Console.WriteLine("Enumerator iterating the ArrayList2..."); IEnumerator demoEnum = list2.GetEnumerator(); while (demoEnum.MoveNext()) { Console.WriteLine(demoEnum.Current); } } }
輸出
這將產生以下輸出 -
Elements in ArrayList1... A B C D E F G H I Elements in ArrayList2... A B C D E F G H I Count of elements in ArrayList2 = 9 Count of elements in ArrayList2 (Updated) = 8 Enumerator iterating the ArrayList2... A B C D E G H I
示例
現在我們來看另一個示例 -
using System; using System.Collections; public class Demo { public static void Main() { ArrayList arrList = new ArrayList(); arrList.Add(100); arrList.Add(200); arrList.Add(300); arrList.Add(400); arrList.Add(500); Console.WriteLine("Enumerator iterating the ArrayList..."); IEnumerator demoEnum = arrList.GetEnumerator(); while (demoEnum.MoveNext()) { Console.WriteLine(demoEnum.Current); } } }
輸出
這將產生以下輸出 -
numerator iterating the ArrayList... 100 200 300 400 500
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