在命令提示符下,我将以下内容放入迭代循环中:
choice /c:abcdefghijklmnopqrstuvwxyz1234567890 /n /t:1 /d:0
sleep 1
在Unix中,我会使用:read -t 5 $input
。
有谁知道在Powershell中做到这一点的方法? 现在,我只是等待它出来(下面的最后一行)。
我已经将脚本设置为在电视和PC之间切换,以便为我的妻子。 我为我的妻子打印了之前和之后,我想为自己绕过它。
这是我当前的上下文脚本:
$file_location = "C:Userskrmar_000Documentsaudio.out"
$current = gc $file_location
Write-Host "Current Audio output: " -ForegroundColor White -NoNewline
Write-Host $current -ForegroundColor Red
Write-Host "Changing..." -ForegroundColor Yellow
if ( $current -eq "Speakers” )
{
nircmd.exe mutesysvolume 0
nircmd.exe setsysvolume 65535
nircmd.exe setdefaultsounddevice “AMD HDMI Output”
"AMD HDMI Output" | Out-File -filepath $file_location
# [System.Windows.Forms.MessageBox]::Show("TV Speakers enabled","Speaker Flip")
Write-Host "TV Speakers enabled" -ForegroundColor Green
}
elseif ( $current -eq "AMD HDMI Output” )
{
nircmd.exe mutesysvolume 0
nircmd.exe setsysvolume 52428
nircmd.exe setdefaultsounddevice “Headset”
"Speakers" | Out-File -filepath $file_location
# [System.Windows.Forms.MessageBox]::Show("Headset Speakers enabled","Speaker Flip")
Write-Host "Headset Speakers enabled" -ForegroundColor Green
}
else
{
nircmd.exe setdefaultsounddevice “Speakers”
"Speakers" | Out-File -filepath $file_location
# [System.Windows.Forms.MessageBox]::Show("Headset Speakers enabled","Speaker Flip")
Write-Host "Headset Speakers enabled" -ForegroundColor Green
}
Start-Sleep -Seconds 5
这并不完全是链接答案的欺骗,但它非常接近。为方便起见,这里的完整功能(松散地基于相同):
function Read-HostWithDelay {
param([Parameter(Mandatory=$true)][int]$Delay, [string]$Prompt, [Switch]$AsSecureString)
[int]$CSecDelayed = 0
do {
[bool]$BReady = $host.UI.RawUI.KeyAvailable
[Threading.Thread]::Sleep(1000)
} while (!$BReady -and ($CSecDelayed++ -lt $Delay))
if ($BReady -and $Prompt) { Read-Host $Prompt -AsSecureString:$AsSecureString }
# No, Read-Host will not in fact handle null parameter binding (-Prompt:$Prompt) properly. Who knows why not.
elseif ($BReady) { Read-Host -AsSecureString:$AsSecureString }
}
经过测试,这也是一件好事,因为它被证明比我坦率预期的要少一点。