为什么在指定-ErrorAction SilentlyContinue时仍会显示错误？

Question

PS C:\Users\ad_ctjares> Stop-Transcript -ErrorAction silentlycontinue
Transcription has not been started. Use the start-transcript command to start transcription.
Stop-Transcript : An error occurred stopping transcription: The console host is not currently transcribing.
At line:1 char:16
+ Stop-Transcript <<<<  -ErrorAction silentlycontinue
    + CategoryInfo          : InvalidOperation: (:) [Stop-Transcript], PSInvalidOperationException
    + FullyQualifiedErrorId : InvalidOperation,Microsoft.PowerShell.Commands.StopTranscriptCommand

代码说明了一切.

Answer 1

在ErrorAction无处不在的参数可被用于沉默使用参数值的非终止错误SilentlyContinue,它可用于非终止错误转换为使用参数值终止错误Stop.但它无法帮助您忽略终止错误,在这种情况下,Stop-Transcript会引发终止错误.如果你想忽略,请使用try/catch,例如:

try { Stop-Transcript } catch {}