我认为你需要 foreach-object:

I think you need foreach-object:

get-childitem -recurse ./ *NYCSCA* |  where-object { $_.Name -like
 "*NYCSCA*" } | % {rename-item $_ -newname $_.Name.Replace(" ","_") -whatif}

无法将管道数组重命名为集合.

The piped array can't be renamed as a set.