c4-04.cs

一本很好的教材.C#开发者必备.内容全面,很难得哦.

//二进制文件读写示例
using System;
using System.IO;
class MyStream {
   private const string FILE_NAME = "Test.data";
   public static void Main(String[] args) {
      if (File.Exists(FILE_NAME)) {
         Console.WriteLine("文件 {0} 已经存在!", FILE_NAME);
         return;
      }
      FileStream fs = new FileStream(FILE_NAME, FileMode.CreateNew);
      BinaryWriter w = new BinaryWriter(fs);
      for (int i = 0; i < 11; i++) {
         w.Write( (int) i);
      }
      w.Close();
      fs.Close();
      fs = new FileStream(FILE_NAME, FileMode.Open, FileAccess.Read);
      BinaryReader r = new BinaryReader(fs);
      for (int i = 0; i < 11; i++) {
         Console.WriteLine(r.ReadInt32());
         w.Close();
      }
   }
}