C# 读取物理硬盘的例子

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
using System.Runtime.InteropServices;

namespace RW_PyhsicalDisk
{
    class Program
    {
        [DllImport("kernel32", SetLastError = true)]
        static extern IntPtr CreateFile(
        string FileName,
        uint DesiredAccess,
        uint ShareMode,
        IntPtr SecurityAttributes,
        uint CreationDisposition,
        int FlagsAndAttributes,
        IntPtr hTemplate
        );

        static class DESIREDACCESS
        {
            public const uint GENERIC_READ = 0x80000000;
            public const uint GENERIC_WRITE = 0x40000000;
            public const uint GENERIC_EXECUTE = 0x20000000;
            public const uint GENERIC_ALL = 0x10000000;
        }
        /// <summary>
        /// Sharing mode of the file or object
        ///</summary>
        static class SHAREMODE
        {
            public const uint FILE_SHARE_READ = 0x00000001;
            public const uint FILE_SHARE_WRITE = 0x00000002;
            public const uint FILE_SHARE_DELETE = 0x00000004;
        }
        /// <summary>
        /// Action to take on files that exist, and which action to take when files do not exist.
        /// </summary>
        static class CREATIONDISPOSITION
        {
            public const uint CREATE_NEW = 1;
            public const uint CREATE_ALWAYS = 2;
            public const uint OPEN_EXISTING = 3;
            public const uint OPEN_ALWAYS = 4;
            public const uint TRUNCATE_EXISTING = 5;
        }
        /// <summary>
        /// File attributes and flags for the file.
        /// </summary>
        static class FLAGSANDATTRIBUTES
        {
            public const uint FILE_FLAG_WRITE_THROUGH = 0x80000000;
            public const uint FILE_FLAG_OVERLAPPED = 0x40000000;
            public const uint FILE_FLAG_NO_BUFFERING = 0x20000000;
            public const uint FILE_FLAG_RANDOM_ACCESS = 0x10000000;
            public const uint FILE_FLAG_SEQUENTIAL_SCAN = 0x08000000;
            public const uint FILE_FLAG_DELETE_ON_CLOSE = 0x04000000;
            public const uint FILE_FLAG_BACKUP_SEMANTICS = 0x02000000;
            public const uint FILE_FLAG_POSIX_SEMANTICS = 0x01000000;
            public const uint FILE_FLAG_OPEN_REPARSE_POINT = 0x00200000;
            public const uint FILE_FLAG_OPEN_NO_RECALL = 0x00100000;
            public const uint FILE_FLAG_FIRST_PIPE_INSTANCE = 0x00080000;
        }

        static void Main(string[] args)
        {
            IntPtr handle = CreateFile(@"\\.\PHYSICALDRIVE1",
                            DESIREDACCESS.GENERIC_READ | DESIREDACCESS.GENERIC_WRITE,
                            SHAREMODE.FILE_SHARE_READ | SHAREMODE.FILE_SHARE_WRITE,
                            IntPtr.Zero,
                            CREATIONDISPOSITION.OPEN_EXISTING,
                           0,
                IntPtr.Zero);
            FileStream disk = new FileStream(handle, FileAccess.ReadWrite);
            byte[] bt = new byte[512];
            disk.Seek(0, SeekOrigin.Begin);
            disk.Read(bt, 0, 512);
            for (int i = 0; i < bt.Length; i++)
            {
                Console.Write(bt[i].ToString("x2") + " ");
            }

            Console.ReadLine();
        }
    }
}