如何访问此变量？

Question

class Player
  def getsaves
    print "Saves: "
    saves = gets
  end
  def initialize(saves, era, holds, strikeouts, whip)
  end
end

我有上面的代码......让我说然后写。

j = Player.new(30, 30, 30, 30, 30)

我想访问getsaves中的保存变量 当我在课堂范围之外时，我该怎么做？：

puts saves variable that is inside getsaves

Answer 1

正如您所编写的那样，saves变量不仅无法从类范围外部访问，而且超出了getsaves方法末尾的范围

你应该做这样的事情：

class Player
  def getsaves
    print "Saves: "
    @saves = gets # use an instance variable to store the value
  end
  attr_reader :saves # allow external access to the @saves variable
  def initialize(saves, era, holds, strikeouts, whip)
  end
end

现在，您只需使用j.saves即可访问@saves变量。