如何使用C＃删除USB驱动器 我正在尝试编写一个应用程序来删除USB驱动器，但我找不到方法。 是否有.NET类可以执行此操作，或者使用Win32 API可以使用？

Question

解释如何做，并提供源代码，享受！

Answer 1

i具有测试2个变体，WMI和Shell，壳的变体可根据需要起作用

shell

/// <summary>
/// Eject USB Drice
/// STA Thread is required
/// </summary>
/// <remarks>
/// Install Shell32
/// 1. Right click project
/// 2. Click Add reference
/// 3. Click .COM tab in Add reference dialogue
/// 4. Select Microsoft Shell Controls and Automation
/// 5. Click OK
/// </remarks>
/// <param name="driveName">eg. D:</param>
private static void EjectDrive(string driveName)
{
    var staThread = new Thread(new ParameterizedThreadStart(EjectDriveShell));
    staThread.SetApartmentState(ApartmentState.STA);
    staThread.Start(driveName);
    staThread.Join();
}

private static void EjectDriveShell(object param)
{
    var driveName = param.ToString();

    var shell = new Shell();
    shell.NameSpace(17).ParseName(driveName).InvokeVerb("Eject");
}

wmi

Answer 2

您可以使用此脚本，请参阅

文档

private static void EjectDrice(string driveLetter)
{
    var scope = new ManagementScope(@"\\localhost\root\CIMV2", null);
    scope.Connect();
    var wql = $"SELECT * FROM Win32_Volume WHERE Name LIKE '{driveLetter}%'";
    var objectQuery = new ObjectQuery(wql);
    using var objectSearcher = new ManagementObjectSearcher(scope, objectQuery);
    foreach (ManagementObject classInstance in objectSearcher.Get())
    {
        using ManagementBaseObject inParams = classInstance.GetMethodParameters("Dismount");
        inParams["Force"] = false;
        inParams["Permanent"] = false;

        using ManagementBaseObject outParams = classInstance.InvokeMethod("Dismount", inParams, null);
    }
}