powershell command line variables

 param (
    [string]$server = "http://defaultserver",
    [Parameter(Mandatory=$true)][string]$username,
    [string]$password = $( Read-Host "Input password, please" )
 )write-host "There are a total of $($args.count) arguments"
for ( $i = 0; $i -lt $args.count; $i++ ) {
    write-host "Argument  $i is $($args[$i])"
}