使用引數更改方法

Created: November-22, 2018

你可以訪問與覆蓋方法完全相同的上下文。

class Boat
  def initialize(name)
    @name = name
  end

  def name
    @name
  end
end

puts Boat.new("Doat").name # => "Doat"

class Boat
  def name
    "⛵ #{@name} ⛵"
  end
end

puts Boat.new("Moat").name # => "⛵ Moat ⛵"