如果 catch 块未指定错误类型,catch 块将处理 try 块中遇到的任何错误。 对于指定的不同类型的错误,try 语句可以包含多个 catch 块。 下面显示了 finally 块语法: PowerShell 复制 finally {<statement list>} finally 关键字后跟每次运行脚本时运行的语句列表,即使运行 try 语句时没有出错或 catch...
如果在较高级别上需要区分从System.Management.Automation.RuntimeException派生的异常类型与从catch派生的异常类型,则可以使用非限定的catch块,其中可以使用-is,type(-inheritance)/接口测试操作符-is: try { throw [System.IO.FileNotFoundException]::new("Thrown a file not found exception") } catch { $isPSE...
trap語句提供一種方法,以確保處理腳本區塊內的所有終止錯誤。 如需更精細的錯誤處理,請使用try/catch使用catch語句定義陷阱的區塊。 語句catch只適用於相關聯try語句內的程序代碼。 如需詳細資訊,請參閱about_Try_Catch_Finally。 另請參閱 about_Break
If thethrowkeyword is used in acatchblock without an expression, it throws the current RuntimeException again. For more information, seeabout_Try_Catch_Finally. Throwing a string The optional expression in athrowstatement can be a string, as shown in the following example: ...
((Get-Random-Maximum 100-Minimum 5)-eq40){try{$File.Delete()}catch{Write-Host('Error@delete {0}'-f$File.FullName)-ForegroundColor Red}}$ErrorActionPreference="Stop"try{throw'Expected throable object!'}catch{Write-Host('Error@delete {0}'-f$Error[0].ErrorDetails)-ForegroundColor Yellow...
I am getting below error Try statement is missing its catch or Finally block, WHile i am running my script to install application after checking domain I am having a problem importing a csv file into Powershell v3. I can't save my PowerShell Scripts to local drive I can't seem to use...
is An Introduction to Error Handling in PowerShell. We will discuss error types, the $error variable, error action preferences, try/catch blocks, and $lastexitcode.The first requirement is to understand the types of errors that can occur during execution....
Error handling in scripts is done using the Try, Catch, and Finally script blocks. about_Type_Operators Describes the operators that work with .NET types. about_Types.ps1xml Describes the Types.ps1xml files that let you extend the .NET types of objects used in Windows PowerShell. ...
括号中的foreach语句部分表示要循环访问的变量和集合。 PowerShell 在$<item>循环运行时自动创建变量foreach。 每次迭代开始时,foreach会将项变量设置为集合中的下一个值。{<statement list>}块包含针对每次迭代执行的命令。 示例 例如,以下示例中的foreach循环显示$letterArray数组中的值。
running in parallel, continue to run unless they also encounter a terminating error. The terminating error is written to the error data stream as anErrorRecordwith aFullyQualifiedErrorIdofPSTaskException. Terminating errors can be converted to non-terminating errors using PowerShelltry/catchortrapblock...