直到用户输入是/否

本文介绍了直到用户输入是/否的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我正在尝试编写一个简单的 do..until 循环，但它不起作用:

I am trying to write a simple do..until loop and it does not work:

$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")

这个只循环两次，但每次我点击 Y 时它都应该循环，但是当我点击 N 或 n 时它应该会中断.

This one does loop twice only, but it should loop every time I hit Y but when I hit N or n It should break.

有什么想法吗?

推荐答案

在 PowerShell 中，您基本上有三个选项来提示用户选择是/否.

In PowerShell you have basically three options to prompt a user for a yes/no choice.

• 读取主机 cmdlet:

• The Read-Host cmdlet:

$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')

如果您想忽略响应中的尾随字符，请使用 -like 'y*' 和 -like 'n*'.

Use -like 'y*' and -like 'n*' if you want to ignore trailing characters in the response.

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)

选择 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)