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1,從System.String[]轉到List<System.String>

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

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

2, 從List<System.String>轉到System.String[]

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

listS.Add("str");

listS.Add("hello");

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

測試如下：

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 = 0; 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();
        }
    }
}

結果顯示：