Question

我们的PowerShell对象包含PSCustomObjects形式的array。要将此信息导出到文本或Excel文件，我们需要能够展平数据。

示例代码：

$Fruits = [PSCustomObject]@{
    Name   = 'Banana'
    Colors = [PSCustomObject]@{
                Name = 'Green'
            },
            [PSCustomObject]@{
                Name = 'Yellow'
            }
    Taste = [PSCustomObject]@{
                Name = 'Good'
            },
            [PSCustomObject]@{
                Name = 'Bad'
            },
            [PSCustomObject]@{
                Name = 'Awful'
            }
}

生成：

$Fruits | fl *

Name   : Banana
Colors : {@{Name=Green}, @{Name=Yellow}}
Taste  : {@{Name=Good}, @{Name=Bad}, @{Name=Awful}}

为了能够进行干净的导出，所需的结果应该是这样的：

Name    |   Color    |    Taste
----    |   -----    |    -----
Banana  |   Yellow   |    Good
Banana  |   Green    |    Bad
Banana  |            |    Awful

怎么可能解开这个对象？

Answer 1

您需要找到具有最多值的列，并将其用作for- / while循环的限制。实施例

$maxLines = $Fruits.psobject.Properties | Where-Object { $_.TypeNameOfValue -match 'Object\[\]|ICollection' } | Foreach-Object { $_.Value.Count } | Sort-Object -Descending | Select-Object -First 1
0..($maxLines-1) | ForEach-Object {
    New-Object psobject -Property @{
        Name = $Fruits.Name
        Color = $Fruits.Colors[$_] | Foreach-Object { $_.Name }
        Taste = $Fruits.Taste[$_] | Foreach-Object { $_.Name }
    }
} | Select-Object Name, Color, Taste

输出：

Name   Color  Taste
----   -----  -----
Banana Green  Good 
Banana Yellow Bad  
Banana        Awful

展平多个PowerShell阵列

1 个答案: