Powershell脚本停止在try / catch块中捕获的异常时停止； $ ErrorActionPreference

Question

问题：由于使用$ ErrorActionPreference时，try块应捕获异常，因此powershell脚本停止运行

例：

$ErrorActionPreference = 'Stop'
try {
    ThisCommandWillThrowAnException
} catch {
    Write-Error 'Caught an Exception'
}
# this line is not executed. 
Write-Output 'Continuing execution'  

Answer 1

解决方案：默认情况下， Write-Error实际上会引发一个非终止的异常。 设置$ErrorActionPreference = 'Stop' ， Write-Error在catch块内引发终止异常。

使用-ErrorAction 'Continue'覆盖它

$ErrorActionPreference = 'Stop'
try {
    ThisCommandWillThrowAnException
} catch {
    Write-Error 'Caught an Exception' -ErrorAction 'Continue'
}
# this line is now executed as expected
Write-Output 'Continuing execution'