调用时Powershell函数不映射驱动器

Question

我正在创建一个 New-PSDrive 并映射到共享驱动器。代码在函数之外运行良好，但只要它包含在函数中，我就会看到它尝试映射驱动器。当我运行Get-PSDrive时，指定的共享驱动器没有列出来。

这与在函数外运行脚本完全相反，运行Get-PSDrive 后，我绝对可以看到驱动器映射到共享文件夹，并且它也在文件夹资源管理器中的计算机下列出/显示。

function MapDrive {

# creates an array of available Drive Letters 
$driveArray = @("A","B","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z")

# check every letter in the array if its available then create a New-PSDrive
foreach ($letter in $driveArray) {
    If (!(Test-Path "$letter`:")) {
        New-PSDrive -Name $letter -Root "\\my_server_ip\shared_folder" -Persist -PSProvider Filesystem -Credential (Get-Credential)
        break
    }
    Else {
        Write-Host "No available Drives."
        break
    }
}

}

MapDrive

Get-PSDrive

Answer 1

使用来自Getting a free drive letter 的答案：

$letter = Get-ChildItem function:[f-z]: -n | Where { !(Test-Path $_) } | select -First 1

New-PSDrive -Name ($letter)[0] -Root "\\my_server_ip\shared_folder" -Persist -PSProvider Filesystem -Credential (Get-Credential)