C# I/O二进制文件

using System;
using System.IO;

namespace BinaryFileApplication {

   class Program {

      static void Main(string[] args) {
         BinaryWriter bw;
         BinaryReader br;
         int i = 25;
         double d = 3.14157;
         bool b = true;
         string s = I am happy;

         //create the file
         try {
            bw = new BinaryWriter(new FileStream(mydata, FileMode.Create));
         } catch (IOException e) {
            Console.WriteLine(e.Message + \n Cannot create file.);
            return;
         }

         //writing into the file
         try {
            bw.Write(i);
            bw.Write(d);
            bw.Write(b);
            bw.Write(s);
         } catch (IOException e) {
            Console.WriteLine(e.Message + \n Cannot write to file.);
            return;
         }
         bw.Close();

         //reading from the file
         try {
            br = new BinaryReader(new FileStream(mydata, FileMode.Open));
         } catch (IOException e) {
            Console.WriteLine(e.Message + \n Cannot open file.);
            return;
         }

         try {
            i = br.ReadInt32();
            Console.WriteLine(Integer data: {0}, i);
            d = br.ReadDouble();
            Console.WriteLine(Double data: {0}, d);
            b = br.ReadBoolean();
            Console.WriteLine(Boolean data: {0}, b);
            s = br.ReadString();
            Console.WriteLine(String data: {0}, s);
         } catch (IOException e) {
            Console.WriteLine(e.Message + \n Cannot read from file.);
            return;
         }
         br.Close();
         Console.ReadKey();
      }
   }
}