直到用户输入是/否

Question

我试图写一个简单的do..until循环,它不起作用:

$yesNo = Read-Host -Prompt 'Do you want to add alternative DNS names or IPs into Certificate? Y/N: '

do {
    $dnsipname = Read-Host -Prompt "Please input DNS or IP as dns=alternativeCNname or ip=ipName: "
    Write-Output "$dnsipname" 
    $strQuit = Read-Host " do you want to add another DNS? (Y/N)"
    do {
        $dnsipname = Read-Host -Prompt "Please input DNS or IP as dns=alternativeCNname or ip=ipName: "
        Write-Output "$dnsipname" 
        Add-Content D:\Scripts\expiringCerts\request.inf '`r`n_continue_ = "$dnsipname"'
    } until ($strQuit -eq "Y" -or "y")
} until ($yesNo -eq "Y" -or "y")

这个只做了两次循环,但它应该每次我击中Y时循环,但是当我击中N或n它应该打破.

有任何想法吗？

Answer 1

在PowerShell中,您基本上有三个选项可以提示用户选择是/否.

• 该Read-Hostcmdlet的:

  $msg = 'Do you want to add alternative DNS names or IPs into Certificate? [Y/N]'
  do {
      $response = Read-Host -Prompt $msg
      if ($response -eq 'y') {
          # prompt for name/address and add to certificate
      }
  } until ($response -eq 'n')
  

  使用-like 'y*'和-like 'n*'如果你想忽略响应尾随字符.

• 该PromptForChoice()方法:

  $title   = 'Certificate Alternative Names'
  $msg     = 'Do you want to add alternative DNS names or IPs?'
  $options = '&Yes', '&No'
  $default = 1  # 0=Yes, 1=No
  
  do {
      $response = $Host.UI.PromptForChoice($title, $msg, $options, $default)
      if ($response -eq 0) {
          # prompt for name/address and add to certificate
      }
  } until ($response -eq 1)
  

• 该choice命令:

  $msg = 'Do you want to add alternative DNS names or IPs into Certificate'
  do {
      choice /c yn /m $msg
      $response = $LASTEXITCODE
      if ($response -eq 0) {
          # prompt for name/address and add to certificate
      }
  } until ($response -eq 1)