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                [TOC] # 面向對象-屬性-類方法,靜態方法 ## 一 屬性: `屬性`:將一個方法偽裝成一個屬性,在代碼的級別上沒有本質的提升,但讓其看起來更合理 property:是一種特殊的屬性,訪問它時會執行一段功能(函數)然后返回值 property一般用于類似于bmi,area,周長等需要計算的名詞上 ```python class Person: def __init__(self,name,hight,weight): self.name = name self.__hight = hight #私有化 self.__weight = weight def bmi(self): return "%s 的bmi 值%s"% (self.name, self.__weight / self.__hight ** 2) p1 = Person('張三',1.7,60) print(p1.bmi()) #結果:張三 的bmi 值20.761245674740486 ``` ### 繼承中父類得到子類的空間 可以做任何操作 ```python class A: age = 12 @classmethod def func(cls): cls.age = 30 print(cls.age) class B(A): age = 15 B.func() print(A.__dict__) # '__main__', 'age': 12 print(B.__dict__) # '__main__', 'age': 30 ``````
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