如何返回到PowerShell中函數末尾的用戶菜單

Question

我正在編寫一個PowerShell腳本，該腳本爲用戶提供了多個可供選擇的選項。一旦選擇了選項，就會執行一個功能並將用戶返回到原始菜單。

在下面的代碼中，給用戶提供了選項，並且執行了功能，但是當完成時，腳本就結束了。我想要的是在函數結尾返回到原始用戶菜單。有人能告訴我如何做到這一點？謝謝！

function firstFunction { 
    Write-Host "You chose option 1" 
    return 
} 

Write-Host "Welcome" 

[int]$userMenuChoice = 0 
while ($userMenuChoice -lt 1 -or $userMenuChoice -gt 4){ 
    Write-Host "1. Menu Option 1" 
    Write-Host "2. Menu Option 2" 
    Write-Host "3. Menu Option 3" 
    Write-Host "4. Quit and Exit" 

[int]$userMenuChoice = Read-Host "Please choose an option"} 
switch ($userMenuChoice) { 
    1{firstFunction} 
    2{Write-Host "You chose option 2"} 
    3{Write-Host "You chose option 3"} 
default {Write-Host "Nothing selected"} 
} 

Answer 1

把菜單代碼爲外環不終止，除非$userMenuChoice是4：

do { 
    [int]$userMenuChoice = 0 
    while ($userMenuChoice -lt 1 -or $userMenuChoice -gt 4) { 
    Write-Host "1. Menu Option 1" 
    Write-Host "2. Menu Option 2" 
    Write-Host "3. Menu Option 3" 
    Write-Host "4. Quit and Exit" 

    [int]$userMenuChoice = Read-Host "Please choose an option" 

    switch ($userMenuChoice) { 
     1{firstFunction} 
     2{Write-Host "You chose option 2"} 
     3{Write-Host "You chose option 3"} 
     default {Write-Host "Nothing selected"} 
    } 
    } 
} while ($userMenuChoice -ne 4)