核心代码:
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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();
}
}
}
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效果图: