Ruby/for in

for i in 5..10
    puts "hello world #{i}"
end



puts "select name=\'age\'>"
for age in 1..100
    puts "option>#{age}歳/option>"
end

puts "/select>"




for seireki in 1989..2019
    print("西暦 #{seireki}年は、")
    heisei = seireki - 1988
    puts("平成#{heisei}年です。")
end