从菜单列表中选择多个数字来下载并安装软件

Question

if (-not (Test-Path -Path "$env:ProgramData\Chocolatey\choco.exe" -PathType Leaf)) { # 来自https://chocolatey.org/install

   Set-ExecutionPolicy Bypass -Scope Process -Force;
   [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072;
   iex ((New-Object System.Net.WebClient).DownloadString('https://community.chocolatey.org/install.ps1')) 
}


# Step 2) define the array of packages you are offering

$Packages = 'googlechrome',
            'firefox',
            'codeblocks',
            'windbg',
            'nasm',
            'explorersuite',
            'pestudio',
            'vscode',
            'sysinternals',
            'python',
            'ccleaner',
            'anaconda3',
            'wireshark',
            'sublimetext3',
            'notepadplusplus',
            'Exit'



# Step 3) define the Show-Menu function

 function Show-Menu
 {
    Clear-Host
    Write-Host "**********************************************"
    Write-Host "LIST OF SOFTWARES"

    # write the options using the array of packages

    for ($i = 0; $i -lt $Packages.Count; $i++) 
    {
        # {0,10} means right align with spaces to max 2 characters
        Write-Host ('{0,10}. {1}' -f ($i + 1), $Packages[$i])
    }

    Write-Host " q. Exit the script"
    Write-Host "*************************************************"
    Write-Host
}

# Step 4) enter an endless loop you only exit if the user enters 'q'

while ($true) 
{
    Show-Menu

    # $UserInput = Read-Host "Enter the software number to be installed"

      $UserInput = Read-Host "Select the softwares number(s) to be installed"
      $ok = $UserInput -match '[123456789101112131415]+$'

      if( -not $ok)
      {
            write-host "Invalid selection"
            sleep 2
            write-host ""
       }
       until ($ok)

       switch -Regex ($UserInput)
       {
         "1" {googlechrome}
         "2" {firefox}
         "3" {codeblocks}
         "4" {windbg}
         "5" {nasm}
         "6" {explorersuite}
         "7" {pestudio}
         "8" {vscode}
         "9" {sysinternals}
         "10" {python}
         "11" {ccleaner}
         "12" {anaconda3}
         "13" {wireshark}
         "14" {sublimetext3}
         "15" {notepadplusplus}
        

        } until ($ok)

        
    # test if the user wants to quit and if so, break the loop
   if ($UserInput -eq 'q') { break }

    # test if the user entered a number between 1 and the total number of packages (inclusive)

    if ([int]::TryParse($UserInput,[ref]$null) -and 1..$Packages.Count -contains [int]$UserInput) 
    {
        # here you install the chosen package using the array index number (= user input number minus 1)
        $packageIndex = [int]$UserInput - 1
        Write-Host "Installing $($Packages[$packageIndex])"
       # Choco install $Packages[$packageIndex] -y
         Choco install $Packages[$packageIndex] -y --ignore-checksums

    }

    else 
    {
        $availableOptions = 1..$Packages.Count -join ','
        Write-Host "Error in selection, choose $availableOptions or q" -Foreground Color Red
    }

     $null = Read-Host "Press Enter to continue"
  
}

我必须根据我输入的数字从菜单列表中选择多个数字，然后下载并安装与该数字对应的软件。以前我的脚本运行正常，但当我添加额外的代码来实现上述功能时，它就无法正常工作了。请帮帮我