使用写入主机时输出中的不必要空间 [英] Unnecessary space in output when using Write-Host

问题描述

当我在 Foreach-Object 中使用 Write-Host 时，我在输出中得到了一个不必要的空间.

When I use Write-Host within a Foreach-Object, I get an unnecessary space in the output.

write-host "http://contoso.com/personal/"$_.ADUserName

输出:

http://contoso.com/personal/ john.doe

如何删除 john 之前的空格?Trim 不起作用，因为 $_.ADUserName

How can I remove the space before john? Trim does not work because there is no space in $_.ADUserName

推荐答案

发生这种情况是因为 Write-Host 将常量字符串和对象视为两个单独的参数——实际上并没有将字符串连接在一起你在叫它.而不是这样调用它，实际上连接字符串:

This is happening because Write-Host is considering your constant string and your object to be two separate parameters -- you aren't actually joining the strings together the way you're calling it. Instead of calling it this way, actually concatenate the strings:

write-host "http://contoso.com/personal/$($_.ADUserName)"

或

write-host ("http://contoso.com/personal/" + $_.ADUserName)

或

write-host ("http://contoso.com/personal/{0}" -f $_.ADUserName)

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