问活动记录中有趣的事情

EN

    def second
      find_nth(:second, offset_value ? offset_value + 1 : 1)
    end

    def second!
      second or raise RecordNotFound
    end

    def third
      find_nth(:third, offset_value ? offset_value + 2 : 2)
    end

    def third!
      third or raise RecordNotFound
    end

    def fourth
      find_nth(:fourth, offset_value ? offset_value + 3 : 3)
    end

    def fourth!
      fourth or raise RecordNotFound
    end

    def fifth
      find_nth(:fifth, offset_value ? offset_value + 4 : 4)
    end

    def fifth!
      fifth or raise RecordNotFound
    end

    def forty_two
      find_nth(:forty_two, offset_value ? offset_value + 41 : 41)
    end

    def forty_two!
      forty_two or raise RecordNotFound
    end