在子类中调用父类的方法

class Vehicle:    Country='China'    def __init__(self,name,speed,load,power):        self.name=name        self.speed=speed        self.load=load        self.power=power    def run(self):        print('开动啦')        print('开动啦')class Subway(Vehicle):        def __init__(self,name,speed,load,power,line):           Vehicle.__init__(self,name,speed,load,power)           self.line=line        def show_info(self):            print(self.name,self.speed,self.load,self.power,self.line)        def run(self):            Vehicle.run(self)            print('%s %s 线，开动啦' %(self.name,self.line))line13=Subway('北京地铁','10km/s',1000000000,'电',13)line13.show_info()line13.run()

 super方法的使用

class Vehicle1:    Country='China'    def __init__(self,name,speed,load,power):        self.name=name        self.speed=speed        self.load=load        self.power=power    def run(self):        print('开动啦')        print('开动啦')class Subway(Vehicle1):        def __init__(self,name,speed,load,power,line):           # Vehicle.__init__(self,name,speed,load,power)           # super().__init__(name,speed,load,power)  #super(__class__,self).__init__(name,speed,load,power)           super(Subway,self).__init__(name,speed,load,power)#等价于上面的方式           self.line=line        def show_info(self):            print(self.name,self.speed,self.load,self.power,self.line)        def run(self):            # Vehicle.run(self)            super().run()            print('%s %s 线，开动啦' %(self.name,self.line))line13=Subway('北京地铁','10km/s',1000000000,'电',13)line13.show_info()line13.run()print(line13.__class__)