# -*- coding: UTF-8 -*-

# class Person():
#     city = 'BeiJing'    # 类的数据属性
    
#     def __init__(self, name, age):
#         self.name =name     # 实例对象的数据属性
#         self.age = age
    
#     def run(self):      # 类的函数属性
#         print(f"{self.name} is talk")


# class Teacher(Person):

#     def run(self):  # 继承的时候可以覆盖
#         print(f"{self.name} 牛 🐂")
#     pass



###============ 添加新的属性  ============###

class Person():

    city = 'BeiJing'    
    
    def __init__(self, name, age):
        self.name =name    
        self.age = age

class Teacher(Person):

    def __init__(self,name, age, level):
        super().__init__(name, age) 
        Person.__init__(self, name, age) # 调用了父类
        self.level = level

obj = Teacher('xdc', 18, 2)
print(obj.__dict__)  # 查看属性
print(Teacher.__mro__) # 最后面的是顶级的类 object 
# (<class '__main__.Teacher'>, <class '__main__.Person'>, <class 'object'>)