在PowerShell中使用换行符加入数组

Question

我有一系列名称,我正在尝试使用新的行字符加入.我有以下代码

$body = $invalid_hosts -join "`r`n"
$body = "The following files in $Path were found to be invalid and renamed `n`n" + $body

最后,我通过电子邮件发送内容.

$From = "myaddress@domain.com"
$To = "myaddress@domain.com
$subject = "Invalid language files"

Send-MailMessage -SmtpServer "smtp.domain.com" -From $From -To $To -Subject $subject -Body $body

当我收到消息时,该行The following files in <filepath> were found to be invalid and renamed具有预期的双倍空间,但$ invalid_hosts的内容全部在一行上.我也尝试过

$body = $invalid_hosts -join "`n"

和

$body = [string]::join("`n", $invalid_hosts)

这两种方式都没有效果.我需要做些什么来完成这项工作？

Answer 1

将数组传递给Out-Stringcmdlet,将它们从字符串对象的集合转换为单个字符串:

PS> $body = $invalid_hosts -join "`r`n" | Out-String

Answer 2

今天不得不解决这个问题；以为我会分享我的答案，因为问题和其他答案帮助我找到了解决方案。代替

$body = $invalid_hosts -join "`r`n"
$body = "The following files in $Path were found to be invalid and renamed `n`n" + $body

用

$MessageStr = "The following files in " + $Path + " were found to be invalid and renamed"
$BodyArray = $MessageStr + $Invalid_hosts
$Body = $BodyArray -join "`r`n"

Answer 3

只需输出Out-String即可(参见/sf/answers/1492561801/)

 $result = 'This', 'Is', 'a', 'cat'
 $strResult = $result  | Out-String
 Write-Host $strResult
This
Is
a
cat

Answer 4

我不确定如何回答其他所有问题,但是对于Powershell中的保证换行,请使用:[Environment] :: NewLine代替你的"`n"