(PowerShell会自动收集异常,存储在自动化常量$Error中,$Error是一个数组,把每次最后发生的一次保存在索引为0的位置,存储异常时候,会占用资源,使用$Error.Clean()来清空异常,这个数组也有最大值的,最大值存储在$MaximumErrorCount自动化变量中,默认为256.) $MaximumErrorCount # 256 $MaximumErrorCount=267 $Maximum...
后面可以统一进行分析处理,如下: PS C:\PowerShell> Get-Item "NOSuchDir1","NOSuchDir2","NOSuchDir3" -ErrorAction "SilentlyContinue" -ErrorVariable ErrorStore PS C:\PowerShell> $ErrorStore.Count 3 PS C:\PowerShell> Get-Item "NOSuchDir1" -ErrorAction "SilentlyContinue" ...
不过,Powershell在执行某条命令是也可以指定对错误的处理模式。那就是ErrorAction。PS C:\PowerShell> Remove-Item mossfly.com -ErrorAction "Continue"; Write-Host "工作完成" ObjectNotFound: (C:\PowerShell\mossfly.com:String) [Remove-Item], ItemNotFoundException 工作完成 ...
param($ComputerName= $(throw"ComputerName parameter is required."))functionCanPing {$error.clear()$tmp=test-connection$computername-erroractionSilentlyContinueif(!$?) {write-host"Ping failed:$ComputerName.";return$false}else{write-host"Ping succeeded:$ComputerName";return$true} }functionCanRemote...
Add-Computer to domain with new name returns error Add-Computer unable to join domain. ADD-computer with -newname and joinwithnewname option add-computer with spaces in OUPath Add-content : The network name cannot be found. Add-Content PermissionDenied but works Add-MailboxFolderPermission erro...
static [void] Add([Book]$Book) { [BookList]::Initialize() [BookList]::Validate($Book) if ([BookList]::Books.Contains($Book)) { throw "Book '$Book' already in list" } $FindPredicate = { param([Book]$b) $b.Title -eq $Book.Title -and $b.Author -eq $Book.Author -and $b...
Throw New Exception(String.Format("Failed to save document to{0}. Error code:{1}", outFilePath, err))End If Catch ex As Exception Console.WriteLine("Error:"&ex.Message)Finally swApp.CommandInProgress=False Dim modelTitle As String=model.GetTitle()System.Runtime.InteropServices.Marshal.Release...
try{ NonsenseString } catch {"An error occurred."} catch关键字必须紧跟try块或其他catch块。 PowerShell 不会将“NonsenseString”识别为 cmdlet 或其他项。 运行此脚本会产生以下结果: Output An error occurred. 当脚本遇到“NonsenseString”时,会导致终止错误。catch块通过在块内运行语句列表来处理错误。
A common idiom (in the Bash world, which inspired PowerShell's && and || operators) is to conditionally exit a script when invocation of a command fails, along the lines of: # Assume existence of /somepath and exit, if it doesn't exist. ...
错误:换了台电脑,运行react项目报了错误:Error: spawn powershell ENOENT, 完整如下: Startingthedevelopmentserver...events.js:288thrower;//Unhandled'error'event^Error:spawnpowershellENOENT【***注意这一行报错***】atProcess.ChildProcess._handle.onexit(internal/child_process.js:267:19)atonErrorNT(intern...