python 学习教程！

# 博客笔记链接：https://blog.csdn.net/qq_39147299/article/details/103585041 class Person: def __init__(self): self.name = "人类" self.age = 18 # self.__weight = 100 def say(self): print("我是{}，我今年{}岁".format(self.name, self.age)) def sing(self): print("人类会唱歌") class Programmer(Person): def __init__(self): super().__init__() self.name = "冰冰" def sing(self): print("程序员会唱歌") class Teacher(Person): def __init__(self): super().__init__() self.name = "小美" def sing(self): print("老师会唱歌") def read(self): print("老师会阅读") class Student(Teacher, Programmer): def study(self): print("学生会学习") # 实例化 person = Person() programmer = Programmer() teacher = Teacher() student = Student() # 继承 # print("programmer:", programmer.name, programmer.age) # programmer.say() # print(programmer.__weight) # print(isinstance(person, Person)) # print(isinstance(teacher, Person)) # print(isinstance(student, Person)) # 多态 # def do_something(o): # o.sing() # # # do_something(person) # do_something(programmer) # do_something(teacher) # do_something(student)