Question

我有一个PowerShell函数，可以将文件和文件夹从一个目录移动到另一个目录。我希望能够确保$fromFolder或$toFolder的值都不为空或为空。不确定如何使用两个参数。

function Move-Folders {
    gci $fromFolder -Recurse | ForEach-Object { Move-Item $_.FullName $toFolder }
    ii $toFolder
}

Answer 1

使用验证属性声明参数：about_Functions_Advanced_Parameters

function Move-Folders {
    Param
    (
        [parameter(Mandatory=$true)]
        [ValidateNotNullOrEmpty()]
        [String]
        $fromFolder,

        [parameter(Mandatory=$true)]
        [ValidateNotNullOrEmpty()]
        [String]
        $toFolder
    )

    gci $fromFolder -Recurse | ForEach-Object { Move-Item $_.FullName $toFolder }
    ii $toFolder
}

Answer 2

这应该使用强制参数：

function Move-Folders {
Param(
   [Parameter(Mandatory=$true)]
   $fromFolder,
   [Parameter(Mandatory=$true)]
   $toFolder

) #end param

gci $fromFolder -Recurse | ForEach-Object { Move-Item $_.FullName $toFolder }

ii $toFolder
}

验证2个Powershell参数

2 个答案: