PowerShell HashTable - 初始化期间的自引用

Question

我有一个理论问题 - 如何在初始化期间引用哈希表，例如，计算基于其他已声明成员的成员。

Remove-Variable myHashTable -ErrorAction Ignore
$myHashTable = 
@{
    One = 1
    Two= 2
    Three = ??? # following expressions do not work 
        # $This.One + $This.Two or 
        # $_.One + $_.Two
        # $myHashTable.One + $myHashTable.Two
        # ????
}

$myHashTable.Three -eq 3 # make this $true

任何想法如何做到这一点？真的有可能吗？

编辑:
这是我的解决方案:

$myHashTable = 
@{
    One = 1
    Two= 2
}
$myHashTable.Three = $myHashTable.One + $myHashTable.Two

Answer 1

你也可以重复这个...
有时当哈希表很长时
并且只能在 2 或 3 次重复中定义...
工作正常:

$AAA = @{
    DAT = "C:\MyFolderOfDats"
    EXE = "C:\MyFolderOfExes"
    }

$AAA += @{
    Data   = $AAA.DAT + "\#Links"

    Scripts  = $AAA.EXE + "\#Scripts"
    ScriptsX = $AAA.EXE + "\#ScriptsX"
    }

• Note in the second part we are just adding ( += )
  more items to the first part...
  
  but now... we can refer the items
  in first part of the hashtable