创建和抛出新异常 [英] Creating and throwing new exception

问题描述

如何在 PowerShell 中创建和抛出新异常?

How I can create and throw a new exception in PowerShell?

我想针对特定错误做不同的事情.

I want to do different things for a specific error.

推荐答案

要调用 FileNotFoundException 等特定异常，请使用此格式

To call a specific exception such as FileNotFoundException use this format

if (-not (Test-Path $file)) 
{
    throw [System.IO.FileNotFoundException] "$file not found."
}

要抛出一般异常，请使用后跟字符串的 throw 命令.

To throw a general exception use the throw command followed by a string.

throw "Error trying to do a task"

在 catch 中使用时，您可以提供有关触发错误的其他信息

When used inside a catch, you can provide additional information about what triggered the error

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