Question

我正在尝试使用新行字符加入一系列名称。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，行The following files in <filepath> were found to be invalid and renamed具有预期的双倍空格，但$ invalid_hosts的内容全部在一行上。我也尝试过做

$body = $invalid_hosts -join "`n"

和

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

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-String cmdlet，将它们从字符串对象集合转换为单个字符串：

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

Answer 2

只需输出Out-String（参见https://stackoverflow.com/a/21322311/52277）

即可

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

Answer 3

我不确定如何回答其他所有内容，但为了保证Powershell中的新行，请使用： [环境] :: NewLine代替你的“n”

Answer 4

今天必须解决这个问题;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。而不是

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

使用

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

Answer 5

我采用了不同的方法，只是替换了换行符

$result -replace("`r`n"," ")

Answer 6

我当然不是 PowerShell 专家，但我找到了一种更简单的方法。像这样简单地通过管道传送到 Write-Host：

$array = 'This', 'Is', 'a', 'cat'
$array | Write-Host

Output:
This
Is
a
cat

这是一个与 OP 问题略有不同的用例。它不使用换行符连接数组，但在写入输出时确实提供换行符。

在PowerShell中使用换行符加入数组

6 个答案: