using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
class Program
{
static void Main(string[] args)
{
FileInfo f = new FileInfo("BinFile.dat");
using (BinaryWriter bw = new BinaryWriter(f.OpenWrite()))
{
double aDouble = 1234.67;
int anInt = 34567;
string aString = "A, B, C";
bw.Write(aDouble);
bw.Write(anInt);
bw.Write(aString);
}
using (BinaryReader br = new BinaryReader(f.OpenRead()))
{
Console.WriteLine(br.ReadDouble());
Console.WriteLine(br.ReadInt32());
Console.WriteLine(br.ReadString());
}
}
}