c# 클래스 파일로 저장

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Runtime.Serialization.Formatters.Binary;
using System.Runtime.Serialization;
namespace classsave
{
    class Program
    {
        static void Main(string[] args)
        {
            Human h = new Human("dd","111","1123");
            BinaryFormatter format = new BinaryFormatter();
            try
            {
                Stream s = File.Open("c:\\human.txt", FileMode.Create, FileAccess.ReadWrite);
                format.Serialize(s, h);
                s.Close();
                s = File.Open("c:\\human.txt", FileMode.Open, FileAccess.Read);
                Object o = format.Deserialize(s);
                Human r = (Human)o;
                r.Print();
            }
            catch (IOException e)
            {
                Console.WriteLine(e.Message);
            }
            catch (SerializationException e)
            {
                Console.WriteLine(e.Message);
            }
            catch (Exception e)
            {
                Console.WriteLine(e.Message);
            }
        }
    }
}