Powershell Try Catch 并重试？

Question

我有这个脚本

#Change hostname
[void][System.Reflection.Assembly]::LoadWithPartialName('Microsoft.VisualBasic') 
Write-Host "Change hostname " -NoNewLine
$ComputerName = [Microsoft.VisualBasic.Interaction]::InputBox('Insert the desired computername:', 'Change hostname') 
Write-Host "- DONE" -ForegroundColor DarkGreen -BackgroundColor green -NoNewline
Write-Host " hostname = $ComputerName "
Rename-Computer -NewName $ComputerName

当计算机名有空格时，它会失败，因为主机名不能有空格。我可以阻止表单以包含任何空格吗？或者有人知道如何在重试时创建错误时返回输入框

Answer 1

do {
    $ComputerName = [Microsoft.VisualBasic.Interaction]::InputBox('Insert the desired computername:','Change hostname')
} while ($ComputerName -match "\s")

使用 do{}while() 循环并检查输入没有任何空格应该可以解决您的问题，如果您想检查任何错误，这将重新提示直到输入有效的主机名:

do{
    $Failed = $false
    Try{
        $ComputerName = [Microsoft.VisualBasic.Interaction]::InputBox('Insert the desired computername:', 'Change hostname') 
        Write-Host "- DONE" -ForegroundColor DarkGreen -BackgroundColor green -NoNewline
        Write-Host " hostname = $ComputerName "
        Rename-Computer -NewName $ComputerName -ErrorAction Stop
    } catch { $Failed = $true }
} while ($Failed)

Answer 2

对最终结果非常满意，非常感谢

#Change hostname
Write-Host "Change hostname " -NoNewLine
do{
    $Failed = $false
    Try{
        $ComputerName = [Microsoft.VisualBasic.Interaction]::InputBox('Insert the desired computername:', 'Change hostname') 
        Rename-Computer -NewName $ComputerName -ErrorAction Stop
        Write-Host "- DONE -" -ForegroundColor DarkGreen -BackgroundColor green -NoNewline
        Write-Host "Hostname = $ComputerName" -ForegroundColor DarkGreen -BackgroundColor yellow
    } catch { $Failed = $true }

} while ($Failed)

#Change workgroupname
Write-Host "Change Workgroup " -NoNewLine
do{
    $Failed = $false
    Try{   
        $WorkGroup = [Microsoft.VisualBasic.Interaction]::InputBox("Insert the Workgroupname:", 'Change WorkGroupName', 'werkgroep') 
        Add-Computer -WorkGroupName $WorkGroup -ErrorAction Stop
        Write-Host "- DONE -" -ForegroundColor DarkGreen -BackgroundColor green -NoNewline
        Write-Host "Workgroup = $WorkGroup" -ForegroundColor DarkGreen -BackgroundColor yellow
    } catch { $Failed = $true }
} while ($Failed)

Powershell Try Catch 并重试？

Powershell Try Catch and retry?

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