显示具有多个值的输出

Question

Get-EC2Instance |%{ $_.RunningInstance } | 
    select-object InstanceId,LaunchTime,@{Name='Value'; Expression={$_.Tag.Value} }, @{Name='Key'; Expression={$_.Tag.Key} }

每个值和键都有多个值，如屏幕截图所示。如何重写代码，使输出看起来像：

Answer 1

这是一个解决方案;它不是最优雅的，但希望能解决你的问题：

适合您的使用案例

Get-EC2Instance | `
    %{ 
        $x = $.RunningInstance;
        $x.Tag | select-object 
             @{Name="InstanceId"; Expression={$x.InstanceId}}
            ,@{Name="LaunchTime"; Expression={$x.LaunchTime}}
            ,@{Name="Value";      Expression={$_.Value}}
            ,@{Name="Key";        Expression={$_.Key}};
    } 

简单演示

cls
$x = @(
     (New-Object –TypeName PSObject –Prop @{Name='one';List=@('a','b','c');})
    ,(New-Object –TypeName PSObject –Prop @{Name='two';List=@('d','e','f');})
    ,(New-Object –TypeName PSObject –Prop @{Name='three';List=@('g','h','i');})
    ,(New-Object –TypeName PSObject –Prop @{Name='four';List=@('j','k','l');})
    ,(New-Object –TypeName PSObject –Prop @{Name='five';List=@('m','n','o');})
)

#show what the preparation code produced:
#$x | select Name, List

#show the output we're after
$x | %{$n=$_.Name; $_.List | select @{Name="Name";Expression={$n}},@{Name="ListValue";Expression={$_}}}