新手问题如何统一 say 方法？

u4crella · November 11, 2019 · Last by mingyuan0715 replied at November 11, 2019 · 2146 hits

class Object
    def say(cobj)
        puts cobj.to_s
    end

    def say
        puts self.to_s
    end
end

say 'ahihi'
'123'.say
#ArgumentError is thrown either from say(1) or say (2)???

mingyuan0715 #1 November 11, 2019

def say(obj = self)
  obj.to_s
end

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新手问题 如何统一 say 方法？

新手问题 如何统一 say 方法？

新手问题如何统一 say 方法？

新手问题如何统一 say 方法？