可以获取 PowerShell 中最后执行的命令的计数吗？
我正在编写一个脚本，我想吐出一堆记录，然后将计数显示为最后一行。这就是我到目前为止所拥有的：
Get-Whatever -Department $Deparment
Write-Host (Get-Whatever -Department $Deparment).Count " records found"
但我很好奇是否有一种方法可以做到这一点而无需执行两次。我以为我读过你可以在某处使用 $$ 但这不起作用。有没有更好的方法来做到这一点，或者我只需要运行两次？
我想要的输出看起来像这样：
Name
-------
Abe
Joe
Bill
3 records found
I am writing a script where I would like to spit out a bunch of records and then display the count as the last line. This is what I have so far:
Get-Whatever -Department $Deparment
Write-Host (Get-Whatever -Department $Deparment).Count " records found"
But i'm curious if there is a way to do it without executing it twice. I thought that I had read you could use $$ somewhere but this isn't working. Is there a better way to do this, or do I just have to run it twice?
My Desired output would look something like this:
Name
-------
Abe
Joe
Bill
3 records found
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为什么不简单地将结果分配给变量呢？
请注意
@(..)。它确保即使Get-Whatever不返回任何内容，$d也将是空数组。其他方式例如
Tee-Object。但是，它有点“神奇”地创建变量，因此它不如第一种方法那么可读：至于
Tee-Object（来自文档，请尝试help tee-object -online):Why don't you simply assign the result to a variable?
Note the
@(..). It ensures that even whenGet-Whateverdoesn't return anything,$dwill be empty array.Other way is e.g.
Tee-Object. However, it somewhat "magically" creates variables, so it is not as readable as the first approach:As for
Tee-Object(from documentation, tryhelp tee-object -online):这应该有效：
This should work: