如何执行一个PowerShell功能并行几次 [英] How to execute a Powershell function several times in parallel

问题描述

我不知道需要多线程，工作为主，或是否异步调用此，但基本上我有一个PowerShell脚本函数，它接受几个参数，我需要使用不同的参数，并多次调用有这些并行运行。

目前，我这样调用该函数：

 执行参数1参数2参数3，param4
 

我怎么能称之为多次，而无需等待每次调用执行返回给调用者？

目前我跑2.0版，但如果需要的话我可以更新

编辑：这里是我迄今为止，它不工作：

  $ CMD = {
    param($vmxFilePath,$machineName,$username,$password,$scriptTpath,$scriptFile,$uacDismissScript,$snapshotName)
    执行$ vmxFilePath $ MACHINENAME $ $的用户名密码$ scriptTpath $脚本文件$ uacDismissScript $ snapshotName
}启动工作-ScriptBlock $ CMD -ArgumentList $ vmxFilePath，$计算机名，用户名$密码$，$ scriptTpath，$脚本文件，$ uacDismissScript，$ snapshotName
 

我得到一个错误：

 不能'System.Object的[]'转换为'initializationscript'参数所需的类型system.management.automation.scriptblock。不支持指定的方法
 

EDIT2：我修改我的剧本，但我仍然得到上述错误。这里是我的MOD：

  $ CMD = {
    param($vmxFilePath,$machineName,$username,$password,$scriptTpath,$scriptFile,$uacDismissScript,$snapshotName)
    执行$ vmxFilePath $ MACHINENAME $ $的用户名密码$ scriptTpath $脚本文件$ uacDismissScript $ snapshotName
}启动工作-ScriptBlock $ CMD -ArgumentList $ vmxFilePath，$计算机名，用户名$密码$，$ scriptTpath，$脚本文件，$ uacDismissScript，$ snapshotName
 

解决方案

没有必要此更新。定义一个脚本块，并使用启动作业来根据需要运行该脚本块多次。例如：

  $ CMD = {
  参数（$ A，$ B）
  写主机$ A $ B
}$富=富1..5 |的foreach对象{
  启动工作-ScriptBlock $ CMD -ArgumentList $ _，$ foo的
}
 

该脚本块需要两个参数 $ A 和 $ B 这是由 -ArgumentList 选项。在上面的例子中，分配是 $ _ ＆RARR; $ A 和 $ foo的＆RARR; $ B 。 $ foo的仅仅是一个例子的配置的，但静态参数。

运行 GET-招聘|删除 - 作业在某些时候从队列中删除已完成作业（或 GET-招聘|％{接收在职$ _标识;删除在职$ _标识} 如果要检索输出）。

I'm not sure whether to call this a need for multi-threading, job-based, or async, but basically I have a Powershell script function that takes several parameters and I need to call it several times with different parameters and have these run in parallel.

Currently, I call the function like this:

Execute "param1" "param2" "param3" "param4"

How can I call this multiple times without waiting for each call to Execute return to the caller?

Currently I'm running v2.0 but I can update if necessary

EDIT: here's what I have so far, which doesn't work:

$cmd = {
    param($vmxFilePath,$machineName,$username,$password,$scriptTpath,$scriptFile,$uacDismissScript,$snapshotName)
    Execute $vmxFilePath $machineName $username $password $scriptTpath $scriptFile $uacDismissScript $snapshotName
}

Start-Job -ScriptBlock $cmd -ArgumentList $vmxFilePath, $machineName, $username $password, $scriptTpath, $scriptFile, $uacDismissScript, $snapshotName

I get an error:

cannot convert 'system.object[]' to the type 'system.management.automation.scriptblock' required by parameter 'initializationscript'. specified method is not supported

EDIT2: I've modified my script but I still get the error mentioned above. Here's my mod:

    $cmd = {
    param($vmxFilePath,$machineName,$username,$password,$scriptTpath,$scriptFile,$uacDismissScript,$snapshotName)
    Execute $vmxFilePath $machineName $username $password $scriptTpath $scriptFile $uacDismissScript $snapshotName
}

Start-Job -ScriptBlock $cmd -ArgumentList $vmxFilePath, $machineName, $username $password, $scriptTpath, $scriptFile, $uacDismissScript, $snapshotName

解决方案

No update necessary for this. Define a script block and use Start-Job to run the script block as many times as necessary. Example:

$cmd = {
  param($a, $b)
  Write-Host $a $b
}

$foo = "foo"

1..5 | ForEach-Object {
  Start-Job -ScriptBlock $cmd -ArgumentList $_, $foo
}

The script block takes 2 parameters $a and $b which are passed by the -ArgumentList option. In the example above, the assignments are $_ → $a and $foo → $b. $foo is just an example for a configurable, but static parameter.

Run Get-Job | Remove-Job at some point to remove the finished jobs from the queue (or Get-Job | % { Receive-Job $_.Id; Remove-Job $_.Id } if you want to retrieve the output).

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