在 C# 中搜索符合条件的元素,并返回整个 List 中最后一个元素从零开始的索引
csharpserver side programmingprogramming更新于 2025/9/18 21:07:17
要搜索符合条件的元素,并返回整个 List 中最后一个元素从零开始的索引,代码如下 −
示例
using System;
using System.Collections.Generic;
public class Demo {
private static bool demo(int i) {
return ((i % 10) == 0);
}
public static void Main(String[] args) {
List<int> list = new List<int>();
list.Add(200);
list.Add(215);
list.Add(310);
list.Add(500);
list.Add(600);
Console.WriteLine("List elements...");
foreach (int i in list) {
Console.WriteLine(i);
}
Console.WriteLine("Last Index of the satisfying condition = "+list.FindLastIndex(demo));
}
}
输出
这将产生以下输出 −
List elements... 200 215 310 500 600 Last Index of the satisfying condition = 4
示例
现在让我们看另一个例子 −
using System;
using System.Collections.Generic;
public class Demo {
private static bool demo(int i) {
return ((i % 2) == 0);
}
public static void Main(String[] args) {
List<int> list = new List<int>();
list.Add(200);
list.Add(215);
list.Add(310);
list.Add(500);
list.Add(655);
Console.WriteLine("List elements...");
foreach (int i in list) {
Console.WriteLine(i);
}
Console.WriteLine("Last Index of the satisfying condition = "+list.FindLastIndex(demo));
}
}
输出
这将产生以下输出 −
List elements... 200 215 310 500 655 Last Index of the satisfying condition = 3

