DriveInfo 類別

定義

提供對磁碟上資訊的存取。

public ref class DriveInfo sealed : System::Runtime::Serialization::ISerializable
public ref class DriveInfo sealed
public sealed class DriveInfo : System.Runtime.Serialization.ISerializable
public sealed class DriveInfo
[System.Runtime.InteropServices.ComVisible(true)]
[System.Serializable]
public sealed class DriveInfo : System.Runtime.Serialization.ISerializable
type DriveInfo = class
    interface ISerializable
type DriveInfo = class
[<System.Runtime.InteropServices.ComVisible(true)>]
[<System.Serializable>]
type DriveInfo = class
    interface ISerializable
Public NotInheritable Class DriveInfo
Implements ISerializable
Public NotInheritable Class DriveInfo
繼承
DriveInfo
屬性
實作

範例

下列程式碼範例示範 如何使用 DriveInfo 類別來顯示目前系統上所有磁片磁碟機的相關資訊。

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

此類別會建立磁片磁碟機的模型,並提供方法來查詢磁片磁碟機資訊。 使用 DriveInfo 來判斷有哪些磁片磁碟機可用,以及磁片磁碟機的類型。 您也可以查詢以判斷磁片磁碟機上的容量和可用空間。

建構函式

DriveInfo(String)

提供對指定磁碟上資訊的存取。

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)

SerializationInfo 物件中填入序列化目標物件所需的資料。

適用於