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无法在 Powershell 中将变量从函数传递到脚本

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无法在 Powershell 中将变量从函数传递到脚本

这是我遇到问题的代码部分：


function getGroup {
$Script:confirmdggroup = "N"
$Script:dggroup = "none"
$dggroup = Read-Host -Prompt 'Enter the name of the group to add a member'
write-host "You entered $dggroup"
$confirmdggroup = Read-Host -Prompt 'If the group name is correct enter Y'
write-host "You entered $confirmdggroup when asked to confirm group name"
}



If ($confirmdggroup -ne "Y") {getGroup}
write-host "Group name to be modified is $dggroup"
write-host "the confirmdggroup variable is: $confirmdggroup"

下面是我运行该程序时的输入和输出图像。您可以看到函数内部的变量已正确分配，但外部没有。我做错了什么？

输入和输出

好的，我正在尝试重写而不使用“Script:”，但我无法让函数返回任何内容。这是新函数：


function getGroup {
while($confirmDGGroup -ne "Y")
  {
    $DGGroup = Read-Host -Prompt 'Enter the name of the Exchange group to modify'
    ""
    write-host "You entered $DGGroup"
    ""
    $confirmDGGroup = Read-Host -Prompt 'If the group name is correct enter Y'
  }
}



cls
write-host "This script will add or remove email addresses from an Exchange Distibution Group"
""
$GroupName = getGroup
write-host "The get group function returned $GroupName"
pause

下面是我现在得到的输出：

此脚本将从 Exchange 分发组中添加或删除电子邮件地址

输入要修改的Exchange组的名称：office
你进入办公室
如果组名正确，请输入 Y: Y
获取组函数返回  
按 Enter 继续...：

答案1

这是一个获取用户输入、询问是否正确、如果不正确则重复，最后将文本发送给调用者的函数。

function Get-ExchangeGroupName
    {
    $Prompt = 'Please enter the Group name '

    $Choice = ''
    while ($Choice -eq '')
        {
        $Choice = Read-Host $Prompt
        Write-Host ('You entered [ {0} ].' -f $Choice)
        $YesNo = Read-Host '    Is that correct? [n/y]'
        if ($YesNo -eq 'y')
            {
            # send the result out to the caller
            $Choice
            }
            else
            {
            $Choice = ''
            }
        }
    } # function Get-ExchangeGroupName

$ChosenGroupName = Get-ExchangeGroupName
''
$ChosenGroupName

输出带有n& 的y对“那正确吗？”的响应...

Please enter the Group name : qwerty
You entered [ qwerty ].
    Is that correct? [n/y]: n
Please enter the Group name : AlfaBravo
You entered [ AlfaBravo ].
    Is that correct? [n/y]: y

AlfaBravo

答案2

搞清楚了。我忘了在函数要求输入的行前面添加 $Script:。以下是更正后的代码：


function getGroup {
$Script:dggroup = Read-Host -Prompt 'Enter the name of the group to add a member'
write-host "You entered $dggroup"
$Script:confirmdggroup = Read-Host -Prompt 'If the group name is correct enter Y'
write-host "You entered $confirmdggroup when asked to confirm group name"
}



If ($confirmdggroup -ne "Y") {getGroup}
write-host "Group name to be modified is $dggroup"
write-host "the confirmdggroup variable is: $confirmdggroup"

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