powershell 管道对象到函数

powershell 管道对象到函数

这是我正在尝试做的事情的存根:

function Set-test {
[CmdletBinding()]
    param(
        [Parameter(Mandatory=$True,
               ValueFromPipeline=$True)]
        [object[]]$inputObject
    )
    Write-Verbose "Set-test: input obj= $inputObject" 

    PROCESS {
        foreach ($obj in $inputobject) {
            Write-Output $obj
        }
    }   
}

function Get-test {
    $obj = New-Object PSObject
    $obj | Add-Member -MemberType NoteProperty -Name "swName" -Value "banana"
    $obj | Add-Member -MemberType NoteProperty -Name "Version" -Value "3.2.2"
    Write-Output "obj = $obj"
    $obj | Set-test -verbose    
}

输出如下:

PS > Get-test
obj = @{swName=banana; Version=3.2.2}
VERBOSE: Set-test: input obj= 
Get-Process : Cannot evaluate parameter 'Name' because its argument is  specified as a script block and there is no input. A script block cannot be evaluated without input.
At C:\Users\username\Documents\WindowsPowerShell\Modules\mytool\mytools.psm1:204 char:13
+     PROCESS {
+             ~
+ CategoryInfo          : MetadataError: (:) [Get-Process], ParameterBindingException
+ FullyQualifiedErrorId : ScriptBlockArgumentNoInput,Microsoft.PowerShell.Commands.GetProcessCommand

从详细输出可以看出,对象似乎没有通过管道传输到函数,这让我很困惑。

答案1

您不能在 begin{}、process{} 或 end{} 块之外的 set-test 中使用 write-verbose。这会把事情搞乱。如果您将其移动到 process{} 块内,它就可以正常工作。

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