Question

我有哈希哈希：

 $h1 = @{
    "h2" = @{
        "key1" = 1
        "key2" = 2
        "key3" = 3
        "key4" = 4
    }
 }

我可以访问并获取密钥和值：

$n = 10
ForEach($r in $h1.h2.GetEnumerator()) {
    Write-Host "$($r.Name)$($r.Value)" # ok
    $h1.h2.$($r.Name) = $n # Error
    $n++
}

但我无法将值更改为$ n - 如何使用此循环执行此操作？

ForEach($r in $h1.h2.GetEnumerator()) {
    Write-Host "$($r.Name)$($r.Value)" # want to see new values 10, 11, 12, ...
}

提前致谢， Gooly

Answer 1

枚举键名，并将其用于循环枚举：

$h1 = @{
    "h2" = @{
        "key1" = 1
        "key2" = 2
        "key3" = 3
        "key4" = 4
    }
 }

$n = 10
ForEach($r in $h1.h2.GetEnumerator() | select -ExpandProperty name) {
    Write-Host "$r$($h1.h2.$r)" # ok
    $h1.h2.$r = $n
    $n++
}

Answer 2

$h1 = @{
"h2" = @{
    "key1" = 1
    "key2" = 2
    "key3" = 3
    "key4" = 4
}
}


$n = 10
$h3 = @{}
ForEach($r in $h1.h2.Keys) {
Write-Host "$r" 
$h3.Add("$($r)", $n)
$n++

}

ForEach($r in $h3.GetEnumerator()) {
Write-Host "$($r.Name)$($r.Value)" # want to see new values 10, 11, 12, ...
}

PowerShell Hash of Hashes如何更改值？

2 个答案: