笔记7

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.IO.IsolatedStorage;

class Program
{
      static void Main(string[] args)
      {
            // Create a Store for the current user
            IsolatedStorageFile userStore = IsolatedStorageFile.GetUserStoreForAssembly();

            IsolatedStorageFileStream userStream = new IsolatedStorageFileStream("UserSettings.set", FileMode.Create, userStore);
            StreamWriter userWriter = new StreamWriter(userStream);
            userWriter.WriteLine("User Prefs");
            userWriter.Close();

            Console.Read();
      }

}

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.IO.IsolatedStorage;

class Program
{
  static void Main(string[] args)
  {
    // Create a Store for the current user
    IsolatedStorageFile userStore = IsolatedStorageFile.GetUserStoreForAssembly();

    IsolatedStorageFileStream userStream = new IsolatedStorageFileStream("UserSettings.set", FileMode.Create, userStore);
    StreamWriter userWriter = new StreamWriter(userStream);
    userWriter.WriteLine("User Prefs");
    userWriter.Close();

    // Check to see if the file exists
    string[] files = userStore.GetFileNames("UserSettings.set");
    if (files.Length == 0)
    {
      Console.WriteLine("No data saved for this user");
    }
    else
    {
      // Read the data from the Store
      userStream = new IsolatedStorageFileStream("UserSettings.set", FileMode.Open, userStore);
      StreamReader userReader = new StreamReader(userStream);
      string contents = userReader.ReadToEnd();

      Console.WriteLine(contents);
    }

    Console.Read();
  }

}

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.IO.Compression;

namespace CS
{
  class Program
  {
    static void Main(string[] args)
    {
        CompressFile(@"c:\boot.ini", @"c:\boot.ini.gz");//boot.ini是系统的隐藏文件
        DecompressFile(@"c:\boot.ini.gz", @"c:\boot.ini.txt");

        Console.ReadKey();
    }

    static void CompressFile(string inFilename, 
                             string outFilename)
    {

          FileStream sourceFile = File.OpenRead(inFilename);
          FileStream destFile = File.Create(outFilename);

          // Create the Compressed stream
          GZipStream compStream =
            new GZipStream(destFile, CompressionMode.Compress);

          // Write the data
          int theByte = sourceFile.ReadByte();
          while (theByte != -1)
          {
            compStream.WriteByte((byte)theByte);
            theByte = sourceFile.ReadByte();
          }

          // Clean it up
          sourceFile.Close();
          compStream.Close();
          destFile.Close();
    }

    static void DecompressFile(string inFilename, string outFilename)
    {
          FileStream sourceFile = File.OpenRead(inFilename);
          FileStream destFile = File.Create(outFilename);

          // Create the Compressed stream
          GZipStream compStream =
            new GZipStream(sourceFile, CompressionMode.Decompress);

          // Write the data
          int theByte = compStream.ReadByte();
          while (theByte != -1)
          {
            destFile.WriteByte((byte)theByte);
            theByte = compStream.ReadByte();
          }

          // Clean it up
          sourceFile.Close();
          compStream.Close();
          destFile.Close();
    }
  }
}

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;

namespace CS
{
  class Program
  {
    static void Main(string[] args)
    {
      DirectoryInfo dir = new DirectoryInfo(Environment.SystemDirectory);
      DriveInfo[] drives = DriveInfo.GetDrives();

      ShowDirectory(dir);
      ShowDirve(drives);

      Console.ReadKey();
  }

    static void ShowDirectory(DirectoryInfo dir)
    {
      // Show Each File
      foreach (FileInfo file in dir.GetFiles())
      {
        Console.WriteLine("File: {0}", file.FullName);
      }

      ////递归显示子目录和子目录下的文件(Go through sub-directories )
      //foreach (DirectoryInfo subDir in dir.GetDirectories())
      //{
      //  ShowDirectory(subDir);
      //}

    }
      static void ShowDirve(DriveInfo[] drives)
      {
          // Show Each File
          foreach (DriveInfo drive in drives)
          {
              //IsReady 指示驱动器是否已准备好。例如，它指示 CD 是否在 CD 驱动器中，或者可移动存储设备是否已准备好执行读/写操作。如果您未测试驱动器是否已准备好，而它没有准备好，则使用 DriveInfo 查询驱动器会引发 IOException。
              if (drive.IsReady)
              {
                  string strDriveInfo;
                  strDriveInfo = string.Format("Drive:{0} Type:{1} 总空间容量:{2} 剩余空间总容量:{3} 可用空间容量:{4} 文件系统名称:{5} 驱动器卷标:{6}", drive.Name, drive.DriveType, drive.TotalSize.ToString(), drive.TotalFreeSpace.ToString(), drive.AvailableFreeSpace,drive.DriveFormat,drive.VolumeLabel);
                  //strDriveInfo = string.Format("Drive:{0} | Type:{1}", drive.Name, drive.DriveType);
                  Console.WriteLine(strDriveInfo);
              }
              else
              {
                  string strDriveInfo;
                  strDriveInfo = string.Format("Drive:{0} Type:{1}", drive.Name, drive.DriveType);
                  Console.WriteLine(strDriveInfo);
              }
          }
      }
  }
}

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;

namespace CS
{
  class Program
  {
    static void Main(string[] args)
    {
      FileSystemWatcher watcher =
        new FileSystemWatcher(Environment.SystemDirectory);

      // Watch all .ini files for
      // changes to size or attributes only
      // but in every subdirectory
      watcher.Filter = "*.ini";
      watcher.IncludeSubdirectories = true;
      watcher.NotifyFilter =
        NotifyFilters.Attributes | NotifyFilters.Size|NotifyFilters.;

      // Register for event
      watcher.Changed +=
        new FileSystemEventHandler(watcher_Changed);

      // Start the Events
      watcher.EnableRaisingEvents = true;

      // Read for a keypress to exit the app
      Console.ReadKey();
    }

    static void watcher_Changed(object sender,
      FileSystemEventArgs e)
    {
      Console.WriteLine("Changed: {0}", e.FullPath);
    }
  }
}

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;

namespace CS
{
  class Program
  {
    static void Main(string[] args)
    {
      StreamWriter writer = File.CreateText(@"c:\newfile.txt");
      writer.WriteLine("This is my new file");
      writer.WriteLine("Do you like its format?");
      writer.Close();

      StreamReader reader = File.OpenText(@"c:\newfile.txt");
      string contents = reader.ReadToEnd();
      reader.Close();
      Console.WriteLine(contents);
    }
  }
}