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#!/usr/bin/python3 #类定义 class people: #定义基本属性 name = '' age = 0 #定义私有属性,私有属性在类外部无法直接进行访问 __weight = 0 #定义构造方法 def __init__(self,n,a,w): self.name = n self.age = a self.__weight = w def speak(self): print("%s 说: 我 %d 岁。" %(self.name,self.age)) #单继承示例 class student(people): grade = '' def __init__(self,n,a,w,g): #调用父类的构函 people.__init__(self,n,a,w) self.grade = g #覆写父类的方法 def speak(self): print("%s 说: 我 %d 岁了,我在读 %d 年级"%(self.name,self.age,self.grade)) s = student('ken',10,60,3) s.speak()
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