Question

目前我有这个：

do {
  $MAB = Read-Host "Do you require a Mandatory and/or Advertised deployment? (M)andatory, (A)dvertised, (B)oth"
} while ($MAB -ne "M","A","B")

但它并不适合我。

我需要它做的是请求用户是否需要广告，强制或两者，并根据他们需要他们输入M表示强制性，A表示广告或B表示两者。

目前，如果我输入3个字母中的任何一个，请使用我上面的内容，它只是再次询问。

如果我这样设置：

do {
  $MAB = Read-Host "Do you require a Mandatory and/or Advertised deployment? (M)andatory, (A)dvertised, (B)oth"
} while ($MAB -ne "M")

它工作正常，虽然这对A或B输入没有帮助。

此外，如果您可以解释我如何抛出错误说＆＃34;您必须输入A代表广告，B代表两者，或M代表强制性，继续。＆＃34;如果他们放入M，A或B以外的任何东西。

Answer 1

$title = "Deployment choices"
$message = "Do you require a Mandatory and/or Advertised deployment?"

$mandatory = New-Object System.Management.Automation.Host.ChoiceDescription "&Mandatory"
$advertised = New-Object System.Management.Automation.Host.ChoiceDescription "&Advertised"
$both = New-Object System.Management.Automation.Host.ChoiceDescription "&Both"
$options = [System.Management.Automation.Host.ChoiceDescription[]]($mandatory, $advertised, $both)

#do
#{
    $result = $host.ui.PromptForChoice($title, $message, $options, 0) 

    switch ($result)
    {
        0 {"You selected Mandatory."}
        1 {"You selected Advertised."}
        2 {"You selected Both." }
    }
#}
#until ($result -in 0..2)

Answer 2

我认为这很简洁：

do {
  $MAB = Read-Host "Do you require a Mandatory and/or Advertised deployment? (M)andatory, (A)dvertised, (B)oth"
} until ($("M","A","B").Contains($MAB))

Answer 3

好的，所以我发现了 - 我一整天都在寻找这个，很难找到倍数的答案。

它实际上不是do..while，而是do..until：

do {
  $MAB = Read-Host "Do you require a Mandatory and/or Advertised deployment? (M)andatory, (A)dvertised, (B)oth"
} until (($MAB -eq "M") -or ($MAB -eq "A") -or ($MAB -eq "B"))

我希望这可以帮助其他人。

Answer 4

另一个选项是choice命令：

choice /c mab /m 'Do you require a Mandatory and/or Advertised deployment'
switch ($LASTEXITCODE) {
  1 { 'You selected Mandatory.' }
  2 { 'You selected Advertised.' }
  3 { 'You selected Both.' }
}

循环直到用户输入三个必需字母之一

4 个答案: