在 C# 中反转整个 List 或特定范围内元素的顺序
要反转整个 List 中元素的顺序,代码如下 −
示例
using System; using System.Collections.Generic; public class Demo { public static void Main(String[] args) { List<String> list = new List<String>(); list.Add("One"); list.Add("Two"); list.Add("Three"); list.Add("Four"); list.Add("Five"); list.Add("Six"); list.Add("Seven"); list.Add("Eight"); Console.WriteLine("Enumerator iterates through the list elements..."); List<string>.Enumerator demoEnum = list.GetEnumerator(); while (demoEnum.MoveNext()) { string res = demoEnum.Current; Console.WriteLine(res); } list.Reverse(2, 4); Console.WriteLine("Elements in ArrayList2...Reversed 4 elements beginning from index 2"); foreach (string res in list) { Console.WriteLine(res); } } }
输出
这将生成以下输出 −
Enumerator iterates through the list elements... One Two Three Four Five Six Seven Eight Elements in ArrayList2...Reversed 4 elements beginning from index 2 One Two Six Five Four Three Seven Eight
示例
让我们再看一个示例 −
using System; using System.Collections.Generic; public class Demo { public static void Main(String[] args) { List<int> list = new List<int>(); list.Add(5); list.Add(10); list.Add(20); list.Add(50); list.Add(100); Console.WriteLine("Enumerator iterates through the list elements..."); List<int>.Enumerator demoEnum = list.GetEnumerator(); while (demoEnum.MoveNext()) { int res = demoEnum.Current; Console.WriteLine(res); } list.Reverse(); Console.WriteLine("Elements in List...Reversed"); foreach (int i in list) { Console.WriteLine(i); } } }
输出
这将生成以下输出 −
Enumerator iterates through the list elements... 5 10 20 50 100 Elements in List...Reversed 100 50 20 10 5
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