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ConfusedButterfly's questions

Martin Hope
ConfusedButterfly
Asked: 2024-11-19 15:32:42 +0800 CST
  • 6
$PSVersionTable.PSVersion

Major  Minor  Build  Revision
-----  -----  -----  --------
5      1      22621  4391

考虑以下代码片段

# Function to determine if the OS is Windows Server
function Is-WindowsServer {
    $osVersion = (Get-WmiObject -Class Win32_OperatingSystem).Caption
    return $osVersion -like "*Server*"
}

# Function to check if SMB/Network Sharing is installed
function Is-SMBInstalled {
    if (Is-WindowsServer) {
        Write-Output "Detected Windows Server. This should print."
        $smbFeature = Get-WindowsFeature -Name FS-SMB1 -ErrorAction SilentlyContinue
        if ($smbFeature -and $smbFeature.Installed) {
            return $true
        } else {
            return $false
        }
    } else {
        Write-Output "Detected Windows 10/11 client. This should print."
        $smbFeature = Get-WindowsOptionalFeature -Online -FeatureName "SMB1Protocol" -ErrorAction SilentlyContinue
        if ($smbFeature -and $smbFeature.State -eq "Enabled") {
            return $true
        } else {
            return $false
        }
    }
    Write-Output "This should be unreachable."
}

Is-SMBInstalled # probe

if (Is-SMBInstalled -eq $true) {
    Write-Output "If above line is False. This should not print."
}

在禁用 Samba 的 Windows 10/11 上的预期输出：

Detected Windows 10/11 client. This should print.
False

禁用 Samba 的 Windows 10/11 上的脚本输出：

Detected Windows 10/11 client.
False
If above line is False. This should not print.

此外，就其本身而言，

if (Is-SMBInstalled -eq $true) {
    Write-Output "If above line is False. This should not print."
}

似乎无法正确调用 Is-SMBInstalled。如果没有Is-SMBInstalled # probe，输出只是If above line is False. This should not print.

我尝试过将 Is-SMBInstalled 放入 $variable 中进行重构，这在某种意义上是有效的，因为该函数被正确调用。但条件仍然表现异常。

我也尝试了按照https://stackoverflow.com/a/66585435/14097947 if ((Is-SMBInstalled)) {的分组功能，但这也不起作用。

powershell