如何确定帐户的类型(AD用户与AD组)？

$username = "exampleuser"
$adsi = [ADSI]"WinNT://$env:COMPUTERNAME"
$user = $adsi.Children | Where-Object { $_.SchemaClassName -eq 'user' -and $_.Name -eq $username }
if ($user) {
    Write-Host "The account is a user account."
} else {
    $group = $adsi.Children | Where-Object { $_.SchemaClassName -eq 'group' -and $_.Name -eq $username }
    if ($group) {
        Write-Host "The account is a group account."
    } else {
        Write-Host "The account was not found."
    }
}