Question

这是简单的代码：

function getcomputer() {
  if (($a.Length) -eq "1") {
    if (-not(Test-Path "C:\users\ka1\documents\listofmachines$a.txt")) {
      Write-Host "File C:\users\ka1\documents\listofmachines$a.txt not Found"
      exit
    }
    $comps = gc "C:\users\ka1\documents\listofmachines$a.txt"
  }
  if (-not($a)) {
    if (-not(Test-Path "C:\users\ka1\documents\listofmachines.txt")) {
      Write-Host "File C:\users\ka1\documents\listofmachines.txt not Found"
      exit
    }
    $comps = gc "C:\users\ka1\documents\listofmachines.txt"
  }
  return $comps
}

此getcomputer函数在第一个PowerShell中调用：

$sccmexe ="C:\Program Files (x86)\SCCM Remote Control Toolset\CmRcViewer.exe" 
$ScriptName = $MyInvocation.MyCommand.Name
Write-Host $ScriptName
$a = Read-Host -Prompt 'Please type the computername (or Enter for list)'
getcomputer $a

foreach ($computer in $computers) {
  if ((Test-Connection -ComputerName $computer -Count 1 -Quiet) -eq $true) {
    & $sccmexe $computer
  } else {
    Write-Host "$computer offline"
  }
}

我期待做的事情似乎很简单，只需将管道$Comps（我可以处理计算机）返回到主脚本。我应该保留$a而不是将其更改为$comps吗？

Answer 1

PowerShell函数return成功输出流上的所有输出。管道从其上游cmdlet或进程读取成功输出流。您需要做的就是更改foreach loop to a ForEach-Object loop（将循环变量更改为$_！）并使用管道将其连接到getcomputer：

getcomputer $a | ForEach-Object {
  if ((Test-Connection -ComputerName $_ -Count 1 -Quiet) -eq $true) {
    ...
  } else {
    ...
  }
}

尝试从PowerShell函数传递管道

1 个答案: