PSObject排序

Question

几天前，我正在尝试格式化一个与问题相关的PSObject。我的目标是这样的：

New-Object PSObject -Property @{
    "Version"= $winVersion.Caption
    "Processor Name" = $processorInfo.Name
    "Processor Manufacturer" = $processorInfo.Manufacturer
    "Processor Max Clock Speed" = $processorInfo.MaxClockSpeed     
} |format-list 

上述输出如下：

Processor Manufacturer    : GenuineIntel
Processor Max Clock Speed : 2201
Version                   : Microsoft Windows 8 Pro
Processor Name            : Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz

然而，这一点：

New-Object PSObject -Property @{
    "Windows Version"= $winVersion.Caption
    "Processor Name" = $processorInfo.Name
    "Processor Manufacturer" = $processorInfo.Manufacturer
    "Processor Max Clock Speed" = $processorInfo.MaxClockSpeed     
} |format-list 

给出以下输出：

Processor Manufacturer    : GenuineIntel
Processor Max Clock Speed : 2201
Processor Name            : Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz
Windows Version           : Microsoft Windows 8 Pro

没什么大不了的，但我想知道为什么格式会改变呢？它似乎从任何方面都不按字母顺序排列。此外，我尝试用排序对象(从A)对对象进行排序，但没有结果。这跟字符串有关吗？

Answer 1

无法预测hashtable的顺序( accelerator to make an hashtable ordered)，但在V2.0中，您需要像这样构建自定义对象以保持属性顺序：

$o = New-Object PSObject
 $o | add-member Noteproperty  "Version"  $winVersion.Caption
 $o | add-member Noteproperty  "Processor Name" $processorInfo.Name
 $o | add-member Noteproperty  "Processor Manufacturer" $processorInfo.Manufacturer
 $o | add-member Noteproperty  "Processor Max Clock Speed" $processorInfo.MaxClockSpeed

$o | format-list

Answer 2

您仍然可以向对象中添加自定义方法以提供所需的格式，例如：

$test = New-Object PSObject -Property @{
    "Processor Manufacturer"="GenuineIntel"
    "Processor Max Clock Speed" = "2201"
    "Version"="Microsoft Windows 8 Pro"
}
Add-Member -MemberType ScriptMethod -Name "show" -Value {echo $this.version;echo $this."processor manufacturer";echo $this."Processor Max Clock Speed"} -inputObject $test

$test.show()