,从System.String[]转到List<System.String>

System.String[] str={"str","string","abc"};

List<System.String> listS=new List<System.String>(str);

, 从List<System.String>转到System.String[]

List<System.String> listS=new List<System.String>();

listS.Add("str");

listS.Add("hello");

System.String[] str=listS.ToArray();

测试如下：

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace ConsoleApplication1

{

    class Program

    {

        static void Main(string[] args)

        {

            System.String[] sA = { "str","string1","sting2","abc"};

            List<System.String> sL = new List<System.String>();

            for (System.Int32 i = ; i < sA.Length;i++ )

            {

                Console.WriteLine("sA[{0}]={1}",i,sA[i]);

            }

            sL = new List<System.String>(sA);

            sL.Add("Hello!");

            foreach(System.String s in sL)

            {

                Console.WriteLine(s);

            }

            System.String[] nextString = sL.ToArray();

            Console.WriteLine("The Length of nextString is {0}",nextString.Length);

            Console.Read();

        }

    }

}