假设我有以下片段：
$assoc = New-Object PSObject -Property @{
Id = 42
Name = "Slim Shady"
Owner = "Eminem"
}
Write-Host $assoc.Id + " - " + $assoc.Name + " - " + $assoc.Owner
我希望这段代码显示：
42-Slim Shady-阿姆
但相反，它显示：
42+-+斯利姆·沙迪+-+埃米纳姆
这让我觉得+运算符不适合连接字符串和变量。
您应该如何使用PowerShell实现这一点？
当前回答
$assoc = @{
Id = 34
FirstName = "John"
LastName = "Doe"
Owner = "Wife"
}
$assocId = $assoc.Id
$assocFN = $assoc.FirstName
$assocLN = $assoc.LastName
$assocName = $assocFN, $assocLN -Join " "
$assocOwner = $assoc.Owner
$assocJoin = $assocId, $assocName, $assocOwner -join " - "
$assocJoin
#Output = 34 - John Doe - Wife
其他回答
另一个选项是：
$string = $assoc.ID
$string += " - "
$string += $assoc.Name
$string += " - "
$string += $assoc.Owner
Write-Host $string
“最佳”方法可能是C.B.建议的方法：
Write-Host "$($assoc.Id) - $($assoc.Name) - $($assoc.Owner)"
只是为了好玩。您还可以直接访问PSObject的值，如下所示：
$assoc.psobject.Properties.value -join " - "
但如果未指定对象的顺序，PowerShell将以随机顺序显示值。因此，您应该添加标记[ordered]：
$assoc = [pscustomobject] [ordered] @{
Id = 42
Name = "Slim Shady"
Owner = "Eminem"
}
$assoc = @{
Id = 34
FirstName = "John"
LastName = "Doe"
Owner = "Wife"
}
$assocId = $assoc.Id
$assocFN = $assoc.FirstName
$assocLN = $assoc.LastName
$assocName = $assocFN, $assocLN -Join " "
$assocOwner = $assoc.Owner
$assocJoin = $assocId, $assocName, $assocOwner -join " - "
$assocJoin
#Output = 34 - John Doe - Wife
如果要连接字符串以构建文件路径，请使用“连接路径”命令：
Join-Path C:\temp "MyNewFolder"
它会自动为您添加适当的尾随/前导斜杠，这会让事情变得更加简单。
连接字符串就像在DOS时代一样。这对日志记录来说是一件大事，因此您可以：
$strDate = Get-Date
$strday = "$($strDate.Year)$($strDate.Month)$($strDate.Day)"
Write-Output "$($strDate.Year)$($strDate.Month)$($strDate.Day)"
Write-Output $strday
