如何发现USB大容量存储设备（外置硬盘）？

Question

我尝试过这两种不同的功能，但它没有按预期工作。 How to determine if drive is external drive＆lt; - 此处提供的方法对于usb thumbdrive也会返回true。但是，我正在寻找外置硬盘。

       DriveInfo[] allDrives = DriveInfo.GetDrives();
       foreach (DriveInfo d in allDrives)     
       if (d.DriveType == DriveType.Fixed && d.Name != "C:" + @"\"){}

Answer 1

DriveType枚举也有一个可移动属性：

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;
}

您可以查询类型。