powershell - 使用 New-Variable 函数创建变量时如何显式声明变量的类型？

Question

怎么投 myChar在 New-Variable -Name myChar -Value "=" -Option ReadOnly输入 [char] ，或者(更一般地)我如何指定用 New-Variable 创建的变量的类型?

谢谢

编辑(归功于@veefu):

[char]$sampleVariable="A"
$sampleAttributes=(Get-Variable -Name sampleVariable).Attributes[0]
New-Variable -Name myVariable
(Get-Variable -Name myVariable).Attributes.Add($sampleAttributes)
$myVariable="ab" # GENERATES CONVERSION ERROR (WHICH HELPS A LOT)
$myVariable="a"  # DOES NOT GENERATE CONVERSION ERROR (EVERYTHING'S FINE)

编辑(归功于@postanote):

[char]$anyCharacter="A"
# FOLLOWING LINE GENERATES CONVERSION ERROR (GOOD THING)
Set-Variable -Name anyCharacter -Value "ab" -Option ReadOnly
# FOLLOWING LINE DOES NOT GENERATE CONVERSION ERROR (GREAT)
Set-Variable -Name anyCharacter -Value "a" -Option ReadOnly

Answer 1

现在在 PowerShell 中几乎不可能做到这一点，所以我打开了一个问题 You should be able to set the type conversion attribute on a variable with New-Variable来解决这个问题。