hello.rb

s = "*** mruby test start ***\n"
print s
 
5.times do |i|
  puts "#{i} Hello, world!"
end
 
p s

実行結果

*** mruby test start ***
0 Hello, world!
1 Hello, world!
2 Hello, world!
3 Hello, world!
4 Hello, world!
"*** mruby test start ***\n"