如何在 C# 中将集合元素插入到 List 的指定索引处?
csharpserver side programmingprogramming更新于 2025/5/17 3:37:17
要将集合元素插入到 List 的指定索引处，代码如下 −
示例
using System;
using System.Collections.Generic;
public class Demo {
public static void Main(String[] args){
string[] strArr = { "John", "Tom", "Kevin", "Mark", "Gary" };
List<string> list = new List<string>(strArr);
Console.WriteLine("Elements in a List...");
foreach(string str in list){
Console.WriteLine(str);
}
strArr = new string[] { "Demo", "Text" };
Console.WriteLine("Inserted new elements in a range...");
list.InsertRange(3, strArr);
foreach(string res in list){
Console.WriteLine(res);
}
}
}
输出
这将产生以下输出 −
Elements in a List... John Tom Kevin Mark Gary Inserted new elements in a range... John Tom Kevin Demo Text Mark Gary
示例
现在让我们看另一个例子 −
using System;
using System.Collections.Generic;
public class Demo {
public static void Main(String[] args){
int[] intArr = { 10, 20, 30, 40, 50 };
List<int> list = new List<int>(intArr);
Console.WriteLine("Elements in a List...");
foreach(int i in list){
Console.WriteLine(i);
}
intArr = new int[] { 300, 400, 500};
Console.WriteLine("Inserted new elements in a range...");
list.InsertRange(2, intArr);
foreach(int res in list){
Console.WriteLine(res);
}
}
}
输出
这将产生以下输出 −
Elements in a List... 10 20 30 40 50 Inserted new elements in a range... 10 20 300 400 500 30 40 50
