Windows Powershell Foreach 循环

$array=7..10
foreach ($n in $array)
{
    $n*$n
}
 
#49
#64
#81
#100
 
foreach($file in dir c:\windows)
{
    if($file.Length -gt 1mb)
    {
        $File.Name
    }
}
 
#explorer.exe
#WindowsUpdate.log

PS C:\Powershell> dir C:\Windows | where {$_.length -gt 1mb} |foreach-object {$_.Name}
explorer.exe
WindowsUpdate.log