#!/usr/bin/env ruby
include Enumerable

require 'tk'
TkLabel.new { text 'Hello, World!' 
  pack 
}
Tk.mainloop
root = TkRoot.new { title "Ex1" }
TkLabel.new(root) {
  text  'Hello, World!'
  pack  { padx 15 ; pady 15; side 'left' }
}
Tk.mainloop