DouKaku?

begin
  require 'test'
rescue
  puts "テスト失敗"
end

def bingo(num)
  raise ArgumentError.new("fixnum only") unless num.kind_of? Fixnum
  raise ArgumentError.new("1 ijyou de onegai simasu") unless num >= 1

  results = []

  ary=(1..num).to_a
  ary.size.times{
    index = (rand * ary.size).to_i
    results << ary.delete_at(index)
  }

  results
end

test

#!usr/local/bin/ruby

puts "Hello!,World!"
puts "Hi","How are u?"

text = "Hi,Hello!,How are u today?"
text.sub("H","B")
print text

i = 1
while i <= 10
  print i,"\n"
  i = i + 1
end

5.times{
puts "5回表示を繰り返すよ"
}

class Fixnum

  def foo
    case 0
    when self-101
      return
    when self%15
      return self.hoge('fizzbuzz')
    when self%5
      return self.hoge('buzz')
    when self%3
      return self.hoge('fizz')
    else
      return self.hoge
    end
  end

  def hoge(str=self)
    puts str
    self.next.foo
  end

end

1.foo

test = ["テ", "ス", "ト"]

for t in test
  print t
end
print "\n"

test.each do |t|
  print t
end

def test
  puts test
end

test

begin
test
end