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[導(dǎo)入]Ruby版的父親打孩子

以前在講多態(tài)的時(shí)候總喜歡舉父親打孩子的例子，今天寫了一個(gè)Ruby版，稍后獻(xiàn)上Ruby語(yǔ)法速查

class Father
? attr_accessor :name
?
? def initialize(name)
??? @name = name
? end
?
? def beat(child)
???
??? child.beaten
???
? end
?
end

class Son < Father

? def beaten
??? puts @name + " is running away while father beat him";
? end
?
end

class Daughter < Father

? def beaten
??? puts @name + " is crying while father beat her";
? end
?
end

father = Father.new('Father')
son = Son.new('Son')
daughter = Daughter.new('Daughter')

father.beat(son)
father.beat(daughter)

posted on 2007-03-21 23:30 本博客不再更新 閱讀(105) 評(píng)論(0)  編輯  收藏