c#addrange

C＃List <T> .AddRange()方法 (C# List<T>.AddRange() Method)

List<T>.AddRange() method is used to add the objects/elements of a specified collection at the end of the list.

List <T> .AddRange()方法用于将指定集合的​​对象/元素添加到列表的末尾。

Syntax:

句法：

    void List<T>.AddAddRange(IEnumerable<T> collection);

Parameter: It accepts a collection of elements (like, arrays) of T type to add in the List.

参数：它接受要添加到列表中的T类型的元素(如数组)的集合。

Return value: It returns nothing – it's return type is void

返回值：不返回任何内容–返回类型为void

Example:

例：

    int list declaration:
    List<int> a = new List<int>();
    
    int array to be added to the list:
    int[] int_arr = { 100, 200, 300, 400 };

    adding elements:
    a.AddRange(int_arr);

    Output:
    100 200 300 400

使用List <T> .AddRange()方法将项目添加到列表的C＃示例 (C# Example to add items to the list using List<T>.AddRange() Method)

using System;
using System.Text;
using System.Collections.Generic;

namespace Test
{
    class Program
    {
        static void Main(string[] args)
        {
            //integer list
            List<int> a = new List<int>();
            //int array to add in the list
            int[] int_arr = { 100, 200, 300, 400 };

            //adding elements
            a.Add(10);
            a.Add(20);
            //adding range 
            a.AddRange(int_arr);

            //printing elements
            Console.WriteLine("list elements are...");
            foreach(int item in a)
            {
                Console.Write(item + " ");
            }
            Console.WriteLine();

            //string list
            List<string> b = new List<string>();
            //string array to add in the list
            string[] str_arr = { "Abhi", "Radib", "Prem" };
            //adding elements
            b.Add("Manju");
            b.Add("Amit");
            //adding range
            b.AddRange(str_arr);

            //printing elements
            Console.WriteLine("list elements are...");
            foreach (string item in b)
            {
                Console.Write(item + " ");
            }
            Console.WriteLine();

            //hit ENTER to exit
            Console.ReadLine();
        }
    }
}

Output

输出量

list elements are...
10 20 100 200 300 400
list elements are...
Manju Amit Abhi Radib Prem

翻译自: https://www.includehelp.com/dot-net/list-t-addrange-method-with-example-in-c-sharp.aspx

c#addrange