如何确定给定的驱动器号是本地，映射还是USB驱动器？
鉴于驱动器的字母，我如何确定它是什么类型的驱动器？
例如，E：\是USB驱动器，网络驱动器还是本地硬盘驱动器。
看看DriveInfo的DriveType属性。
System.IO.DriveInfo[] drives = System.IO.DriveInfo.GetDrives(); foreach (var drive in drives) { string driveName = drive.Name; // C:\, E:\, etc:\ System.IO.DriveType driveType = drive.DriveType; switch (driveType) { case System.IO.DriveType.CDRom: break; case System.IO.DriveType.Fixed: // Local Drive break; case System.IO.DriveType.Network: // Mapped Drive break; case System.IO.DriveType.NoRootDirectory: break; case System.IO.DriveType.Ram: break; case System.IO.DriveType.Removable: // Usually a USB Drive break; case System.IO.DriveType.Unknown: break; } }
仅供其他人参考，这就是我将GenericTypeTea的答案转化为：
/// /// Gets the drive type of the given path. /// /// The path. /// DriveType of path public static DriveType GetPathDriveType(string path) { //OK, so UNC paths aren't 'drives', but this is still handy if(path.StartsWith(@"\\")) return DriveType.Network; var info = DriveInfo.GetDrives() Where(i => path.StartsWith(i.Name, StringComparison.OrdinalIgnoreCase)) FirstOrDefault(); if(info == null) return DriveType.Unknown; return info.DriveType; }
（您可能还需要注意AJBauer的答案 ： DriveInfo还会将USB HD列为DriveType.fixed ）
DriveInfo还会将USB HD列为DriveType.fixed，因此如果您需要知道驱动器的接口是否为USB，这无济于事。 这是一个VB.NET函数，它返回所有外部USB驱动器号：
Imports System.Management Public Shared Function GetExternalUSBDriveLettersCommaSeparated() As String Dim usbDrivesString As String = "" Dim wmiDiskDriveDeviceID As String = "" Dim wmiDiskDriveMediaType As String = "" Dim wmiDiskPartitionDeviceID As String = "" Dim wmiLogicalDiskDeviceID As String = "" Using wmiDiskDrives = New ManagementObjectSearcher("SELECT * FROM Win32_DiskDrive WHERE InterfaceType='USB'") For Each wmiDiskDrive As ManagementObject In wmiDiskDrives.Get wmiDiskDriveDeviceID = wmiDiskDrive("DeviceID").ToString wmiDiskDriveMediaType = wmiDiskDrive("MediaType").ToString.ToLower If wmiDiskDriveMediaType.Contains("external") Then Using wmiDiskPartitions = New ManagementObjectSearcher("ASSOCIATORS OF {Win32_DiskDrive.DeviceID='" + wmiDiskDriveDeviceID + "'} WHERE AssocClass = Win32_DiskDriveToDiskPartition") For Each wmiDiskPartition As ManagementObject In wmiDiskPartitions.Get wmiDiskPartitionDeviceID = wmiDiskPartition("DeviceID").ToString Using wmiLogicalDisks = New ManagementObjectSearcher("ASSOCIATORS OF {Win32_DiskPartition.DeviceID='" + wmiDiskPartitionDeviceID + "'} WHERE AssocClass = Win32_LogicalDiskToPartition") For Each wmiLogicalDisk As ManagementObject In wmiLogicalDisks.Get wmiLogicalDiskDeviceID = wmiLogicalDisk("DeviceID").ToString If usbDrivesString = "" Then usbDrivesString = wmiLogicalDiskDeviceID Else usbDrivesString += "," + wmiLogicalDiskDeviceID End If Next End Using Next End Using End If Next End Using Return usbDrivesString End Function
请参阅此MSDN链接： WMI任务：磁盘和文件系统
看看DriveInfo和DriveType
DriveType 还将SUBSTed驱动器显示为DriveType.Fixed 。
要检查驱动器是否已被替换，我使用代码如何确定目录路径是否为SUBST 。