C#文件处理

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;

namespace 文件转换
{
    class Program
    {

        static void Main(string[] args)
        {
            FileStream fs = new FileStream("d://test.TXT",FileMode.Open);// open file fs
            StreamReader my_streamReader = new StreamReader(fs); //read
            my_streamReader.BaseStream .Seek (0,SeekOrigin.Begin);
            string arry = "";
            string strLine = my_streamReader.ReadLine();
            do
            {
                string[] split = strLine.Split('=');
                string a = split[0];
                if (a.ToLower() == "ip")
                {
                    arry += strLine + "\n";
                }
                strLine = my_streamReader.ReadLine();
            }
            while (strLine != null && strLine != "");
            my_streamReader.Close();
            my_streamReader.Dispose();
            fs.Close();
            fs.Dispose();
            Console.Write(arry);
            Console.ReadLine();

        }
    }
}

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