2020-05-16から1日間の記事一覧
class Bulb def turnOn puts "電気がつきました" end def turnOff puts "真っ暗です" end end class Command def execute end def undo end def redo end end class TurnOn < Command def initialize(bulb) @bulb = bulb end def execute @bulb.turnOn end d…
class Bulb def turnOn puts "電気がつきました" end def turnOff puts "真っ暗です" end end class Command def execute end def undo end def redo end end class TurnOn < Command def initialize(bulb) @bulb = bulb end def execute @bulb.turnOn end d…