我已经得到了我的查询结果。它像简单的像我一直使用io.file读取文件。和所有的文本被存储为一个字符串。从那以后，我分裂了分隔符。该代码如下所示

I had got the result for my query. its like simple like i had read a file using io.file. and all the text are stored into a string. After that i splitted with a seperator. The code is shown below.

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

namespace CSV
{
    class Program
    {
        static void Main(string[] args)
        {

            string csv = "user1, user2, user3,user4,user5";

            string[] split = csv.Split(new char[] {',',' '});
            foreach(string s in split)
            {
                if (s.Trim() != "")
                    Console.WriteLine(s);
            }
            Console.ReadLine();
        }
    }
}