Powershell select-object为空

Question

我尝试为这样的Exchange邮箱获取FolderPath：

get-mailbox | select Name,@{L="FoldePath";E={(Get-MailboxFolderStatistics $_.Name).folderpath}}

这给了我以下输出：

Name       FoldePath
----       ---------
User01     {/Top of Information Store, /Calendar, /Contacts, /Delet...
User02     {/Top of Information Store, /Calendar, /Contacts, /Delet...

这很好，但是当我尝试为单个邮箱获取FolderPath时，它会返回空输出。

get-mailbox User01 | select Name,@{L="FoldePath";E={(Get-MailboxFolderStatistics $_.Name).folderpath}}

Name        FoldePath
----        ---------
User01

Format-Table返回正确的输出：

get-mailbox User01 | ft Name,@{L="FoldePath";E={(Get-MailboxFolderStatistics $_.Name).folderpath}}

Name    FoldePath
----    ---------
User01  {/Top of Information Store, /Calendar, /Contacts, /Delet...

我可以使用Select-Object cmdlet获得正确的输出吗？有什么区别？