--- RUBY_VERSION

    Ruby ΥС򼨤ʸRuby ΥСϡ
    major.minor.teeny ȤǤ줾ֹ
    (ΤȤ)ʾˤʤʤ«ƤޤΤǡ

        if RUBY_VERSION >= '1.6.7'
          # С 1.6.7 ʹߤͭʽ
        else
          # ΥСͭʽ
        end

    ȥСΰ㤤ˤʬ񤯤ȤǤޤ

    version 1.8 ޤǤϡminor ΥСϳȯǡ
    minor ΥСϰǤǤ1.9.0 ʹߤϡ
    teeny  0 ΥС󤬳ȯǤȤʤͽǤ

