4

我正在使用一个函数来调用另一个函数并返回一个 PSObject 数组或多个数组（我认为）。每个循环对象之后的返回是一组值。Function Test2 中 $a 中的数据如下，但计数为 3，表示三个对象或数组，每个文件夹一个。这似乎很正常，如果我将其写入 CSV 以作为报告，我会很好，但我希望操纵每个数组中的数据。当我尝试操纵数据时，它试图操纵数组，我无法搜索或使用每一行中的项目。我也不知道我有多少个文件夹，所以解决方案需要通用且可扩展。我不知道如何轻松访问所有数组中的每一行。

Function Test1 {
 [cmdletbinding()]
param(
    [Parameter(Position = 0, Mandatory = $true)]
    [string]$Folder
)

$array1 = @("Folder1_Test1","Folder1_Test2","Folder1_Test3","Folder1_Test4","Folder1_Test5    ","Folder2_Test6","Folder2_Test7","Folder2_Test8","Folder2_Test9","Folder3_Test1    0")
$array2 = @("Folder1_Test1","Folder1_Test4","Folder1_Test5","Folder2_Test9")


$data = @()
Foreach ($item in $array1) {
    If ($item -match $Folder -and $array2 -notcontains $item) {
        $Obj = New-Object PSObject -Property @{
            Folder = $Folder;
            SubFolder = $item;
            Message = "$item not found.";
        }
        $data += $Obj
}
}
Return ,$data
}

Function Test2 {
$Folders = @("Folder1", "Folder2", "Folder3")
$a = $Folders | ForEach-Object {Test1 $_}
$a.Count

foreach ($item in $a)
        { 
          $item.Folder
          $item.SubFolder
          $item.Message
        }
}

然而，$a 的输出是 3。

SubFolder      Message                   Folder 
---------      -------                   ------ 
Folder1_Test2  Folder1_Test2 not found.  Folder1
Folder1_Test3  Folder1_Test3 not found.  Folder1
Folder2_Test6  Folder2_Test6 not found.  Folder2
Folder2_Test7  Folder2_Test7 not found.  Folder2
Folder2_Test8  Folder2_Test8 not found.  Folder2
Folder3_Test10 Folder3_Test10 not found. Folder3

如何访问每个对象内的每一行？我希望能够搜索子文件夹，然后识别它所在的文件夹并编写消息，如下所示：

$a | ForEach-Object | Write-Host {"Subfolder $($_.Subfolder) is in $($_.Folder) and error message is $($_.Message)"}

提前致谢。

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2 回答 2

2

您正在创建的是一个包含三个元素的数组。数组中的每个元素都显示信息。当您将其写到控制台时，您会看到所有元素都挤在一起：

SubFolder          Message                       Folder 
---------          -------                       ------ 
Folder1_Test2      Folder1_Test2 not found.      Folder1
Folder1_Test3      Folder1_Test3 not found.      Folder1
Folder1_Test5      Folder1_Test5     not found.  Folder1
Folder2_Test6      Folder2_Test6 not found.      Folder2
Folder2_Test7      Folder2_Test7 not found.      Folder2
Folder2_Test8      Folder2_Test8 not found.      Folder2
Folder3_Test1    0 Folder3_Test1    0 not found. Folder3

如果您查看 $a[0]，您会看到：

PS C:\WINDOWS\system32> $a[0]

SubFolder         Message                      Folder 
---------         -------                      ------ 
Folder1_Test2     Folder1_Test2 not found.     Folder1
Folder1_Test3     Folder1_Test3 not found.     Folder1
Folder1_Test5     Folder1_Test5     not found. Folder1

这就是计数返回 3 的原因。如果使用$a[0][0]，您将看到一行，因为它正在访问 $a 的第一个元素，这是一个数组，然后访问该数组的第一个元素。您必须使用嵌套循环来访问嵌套数组中的每个元素。

于 2017-09-18T18:24:36.713 回答
0

感谢 Jason，我能够让代码正常工作。我在 Test2 的底部添加了这个，输出如下，一行一行。

Foreach ($Element in $a) {
   ForEach ($item in $Element) {
       Write-Host "Subfolder $($item.Subfolder) is in $($item.Folder) and 
error message is $($item.FolderMessage)"
   }


Subfolder Folder1_Test2 is in Folder1 and error message is Folder1_Test2 not found.
Subfolder Folder1_Test3 is in Folder1 and error message is Folder1_Test3 not found.
Subfolder Folder2_Test6 is in Folder2 and error message is Folder2_Test6 not found.
Subfolder Folder2_Test7 is in Folder2 and error message is Folder2_Test7 not found.
Subfolder Folder2_Test8 is in Folder2 and error message is Folder2_Test8 not found.
Subfolder Folder3_Test10 is in Folder3 and error message is Folder3_Test10 not found.
于 2017-09-18T19:33:38.017 回答