核心代码:
using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Text; using System.Threading.Tasks; namespace ConsoleApplication10 { class Program { static void Main(string[] args) { List<int> list = new List<int>(); list.Add(1);//插入单个元素 list.AddRange(new int[] { 1, 2, 3, 4 });//插入一个集合 //集合转为数组 int[] nums = list.ToArray(); foreach (var item in nums) { Console.WriteLine(item); } Console.WriteLine(); //数组转为集合 int[] nums2 = new int[] { 22,33,44}; List<int> newList = nums2.ToList(); foreach (var item in newList) { Console.WriteLine(item); } Console.ReadKey(); } } }
效果图: