DriveInfo 類別

定義

命名空間:

System.IO

組件:

System.IO.FileSystem.DriveInfo.dll

來源:

DriveInfo.cs

提供對磁碟上資訊的存取。

public ref class DriveInfo sealed : System::Runtime::Serialization::ISerializable

public sealed class DriveInfo : System.Runtime.Serialization.ISerializable

type DriveInfo = class
    interface ISerializable

Public NotInheritable Class DriveInfo
Implements ISerializable

繼承

Object

DriveInfo

實作

ISerializable

範例

下列程式代碼範例示範如何使用 DriveInfo 類別來顯示目前系統上所有磁碟驅動器的相關信息。

using System;
using System.IO;

class Test
{
    public static void Main()
    {
        DriveInfo[] allDrives = DriveInfo.GetDrives();

        foreach (DriveInfo d in allDrives)
        {
            Console.WriteLine("Drive {0}", d.Name);
            Console.WriteLine("  Drive type: {0}", d.DriveType);
            if (d.IsReady == true)
            {
                Console.WriteLine("  Volume label: {0}", d.VolumeLabel);
                Console.WriteLine("  File system: {0}", d.DriveFormat);
                Console.WriteLine(
                    "  Available space to current user:{0, 15} bytes",
                    d.AvailableFreeSpace);

                Console.WriteLine(
                    "  Total available space:          {0, 15} bytes",
                    d.TotalFreeSpace);

                Console.WriteLine(
                    "  Total size of drive:            {0, 15} bytes ",
                    d.TotalSize);
            }
        }
    }
}
/*
This code produces output similar to the following:

Drive A:\
  Drive type: Removable
Drive C:\
  Drive type: Fixed
  Volume label:
  File system: FAT32
  Available space to current user:     4770430976 bytes
  Total available space:               4770430976 bytes
  Total size of drive:                10731683840 bytes
Drive D:\
  Drive type: Fixed
  Volume label:
  File system: NTFS
  Available space to current user:    15114977280 bytes
  Total available space:              15114977280 bytes
  Total size of drive:                25958948864 bytes
Drive E:\
  Drive type: CDRom

The actual output of this code will vary based on machine and the permissions
granted to the user executing it.
*/

Imports System.IO

Class Test
    Public Shared Sub Main()
        Dim allDrives() As DriveInfo = DriveInfo.GetDrives()

        Dim d As DriveInfo
        For Each d In allDrives
            Console.WriteLine("Drive {0}", d.Name)
            Console.WriteLine("  Drive type: {0}", d.DriveType)
            If d.IsReady = True Then
                Console.WriteLine("  Volume label: {0}", d.VolumeLabel)
                Console.WriteLine("  File system: {0}", d.DriveFormat)
                Console.WriteLine( _
                    "  Available space to current user:{0, 15} bytes", _
                    d.AvailableFreeSpace)

                Console.WriteLine( _
                    "  Total available space:          {0, 15} bytes", _
                    d.TotalFreeSpace)

                Console.WriteLine( _
                    "  Total size of drive:            {0, 15} bytes ", _
                    d.TotalSize)
            End If
        Next
    End Sub
End Class
'This code produces output similar to the following:
'
'Drive A:\
'  Drive type: Removable
'Drive C:\
'  Drive type: Fixed
'  Volume label: 
'  File system: FAT32
'  Available space to current user:     4770430976 bytes
'  Total available space:               4770430976 bytes
'  Total size of drive:                10731683840 bytes 
'Drive D:\
'  Drive type: Fixed
'  Volume label: 
'  File system: NTFS
'  Available space to current user:    15114977280 bytes
'  Total available space:              15114977280 bytes
'  Total size of drive:                25958948864 bytes 
'Drive E:\
'  Drive type: CDRom
'
'The actual output of this code will vary based on machine and the permissions
'granted to the user executing it.

備註

此類別會建立磁碟驅動器的模型，並提供方法來查詢磁碟驅動器資訊。 使用 DriveInfo 來判斷可用的磁碟驅動器，以及磁碟驅動器的類型。 您也可以查詢以判斷磁碟驅動器上的容量和可用空間。

建構函式

DriveInfo(String)

建立 DriveInfo 類別的新執行個體。

屬性

AvailableFreeSpace	表示磁碟機上的可用空間量，以位元組為單位。
DriveFormat	取得檔案系統的名稱，例如 NTFS 或 FAT32。
DriveType	取得磁碟類型，例如 CD-ROM、卸除式、網路或固定式。
IsReady	取得值，這個值表示磁碟機是否已就緒。
Name	取得磁碟機名稱，例如 C:\。
RootDirectory	取得磁碟的根目錄。
TotalFreeSpace	取得磁碟機上可用空間的總量，以位元組為單位。
TotalSize	取得磁碟機上儲存空間的總大小，以位元組為單位。
VolumeLabel	取得或設定磁碟的磁碟區標籤。

方法

Equals(Object)	判斷指定的物件是否等於目前的物件。 (繼承來源 Object)
GetDrives()	擷取電腦上所有邏輯磁碟的磁碟名稱。
GetHashCode()	做為預設雜湊函式。 (繼承來源 Object)
GetType()	取得目前執行個體的 Type。 (繼承來源 Object)
MemberwiseClone()	建立目前 Object 的淺層複製。 (繼承來源 Object)
ToString()	將磁碟名稱以字串方式傳回。

明確介面實作

ISerializable.GetObjectData(SerializationInfo, StreamingContext)

在 SerializationInfo 物件中填入序列化目標物件所需的資料。