Powershell - 等待输入 10 秒 [英] Powershell - Wait input for 10 seconds

问题描述

$inputYN = Read-Host "(defaults to y in 10 sec) [y/n] ";

如果用户在 10 秒内没有提供任何输入，那么默认 $inputYN 应该转到是"并前进到下一个任务.

If user doesn't provide any input in 10 second then default $inputYN should go to "Yes" and move forward to next task.

推荐答案

你的问题引起了我的兴趣.我不确定它的效果如何，但我测试了几次并找回了正确的密钥.如果您尝试输入大写字母，则效果不佳.但是，必须有比这更好的方法.您可以随时查看其他论坛，例如 PowerShell.com 或 PowerShell.org 以获得不同的人群.

Your question intrigued me. I'm not sure how well this will work, but I tested it a couple of times and got the correct keys back. Doesn't work too well if you try to enter capital letters. There has to be a better way than this, though. You can always check with other forums like PowerShell.com or PowerShell.org to get a different crowd.

function Get-Answer {
    $counter = 0
    while($counter++ -lt 100){
        if($Host.UI.RawUI.KeyAvailable){
            #You could check to see if it was the "Shift Key or another"
            $key = $host.UI.RawUI.ReadKey("NoEcho,IncludeKeyUp")
            break
        }
        else{
            Start-Sleep -Milliseconds 100
            $key = $false
        }
    }
    return ($key)
}

Write-Host 'Enter y/n'
$answers = Get-Answer
if($answers -eq $false -or ($answers.Character -eq 'y')){
    "Yes is default"
}
elseif($answers.Character -eq 'n'){
    "NO!!!!"
}
else{
    "Invalid Key $($answers.Character): `"YES`" is being used now."
}

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