Powershell-提示用户，然后在xx秒后过期提示

Question

我正在尝试显示用户操作的提示，如果没有采取任何操作，请关闭提示并继续脚本。这是我在上的命令提示对话框配置

---

$yes = New-Object System.Management.Automation.Host.ChoiceDescription "&Yes",""
$no = New-Object System.Management.Automation.Host.ChoiceDescription "&No",""
$cancel = New-Object System.Management.Automation.Host.ChoiceDescription "&Cancel",""
$choices = [System.Management.Automation.Host.ChoiceDescription[]]($yes,$no,$cancel)
$caption = "Caption message here"
$dialogmessage = ("Do you want to do something?:`n")
$timer = #set some value
#While the value is grater than zero keep the prompt open
while($timer -gt 0)
{
    $result = $Host.UI.PromptForChoice($caption,$dialogmessage,$choices,0)
    if($result -eq 0){Write-Host "Yes was selected"}
    if($result -eq 1){Write-Host "No was selected"}
    if($result -eq 2){Write-Host "Canceled by user.";exit}
 }

---

我在互联网上到处看了看，我在C#中看到了这一点，但就我而言，我无法确定powershell的最佳方法。如果有任何帮助，我将不胜感激。

谢谢

编辑：谢谢诺亚，这是更新的代码，它也更紧凑！

        $prompt = new-object -comobject wscript.shell 
        $answer = $prompt.popup("Do you want to do something?`n",5,"title",3)              
        if($answer -eq 6) {Write-Host "Yes was selected"}
        if($answer -eq 7) {Write-Host "No was selected"}
        if($answer -eq -1) {Write-Host "Timed out"}
        if($answer -eq 2) {Write-Host "Canceled by user."}   

Answer 1

给你。。。这是从我的一个旧脚本中挖出来的

#Value  Description   
#0 Show OK button. 
#1 Show OK and Cancel buttons. 
#2 Show Abort, Retry, and Ignore buttons. 
#3 Show Yes, No, and Cancel buttons. 
#4 Show Yes and No buttons. 
#5 Show Retry and Cancel buttons. 
#http://msdn.microsoft.com/en-us/library/x83z1d9f(v=vs.84).aspx
$a = new-object -comobject wscript.shell 
$intAnswer = $a.popup("Question?",2,"Title",4) #first number is timeout, second is display.
#7 = no , 6 = yes, -1 = timeout