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#!/usr/bin/env ruby
require 'tk'
unless /^8\.[1-9]/ =~ Tk::TCL_VERSION && !Tk::JAPANIZED_TK
require 'tkencoding'
end
TkButton.new(nil,
'text'=>"Hello Ruby world!",
'font'=>TkFont.new('k14'),
'command'=>proc{print "Hello Ruby world!\n"; exit}
).pack
Tk.mainloop
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