#子类中调用父类#初步程序# class Vehicle:#定义交通工具# Country="China"# def __init__(self,name,speed,load):# self.name=name# self.spedd=speed# self.load=load## def run(self):# print("开动了")## class Subway(Vehicle):#定义个地铁# def __init__(self,name,speed,load,line):# self.name=name# self.spedd=speed# self.load=load# self.line=line## def show_info(self):# print(self.name,self.line)## line13=Subway("北京地铁","100m/s","1000","13")## line13.show_info()## #子类调用父类# class Vehicle:#定义交通工具# Country="China"# def __init__(self,name,speed,load):# self.name=name# self.spedd=speed# self.load=load## def run(self):# print("开动了")## class Subway(Vehicle):#定义个地铁# def __init__(self,name,speed,load,line):# Vehicle.__init__(self,name,speed,load)#引用父类的属性# self.line=line# def show_info(self):# print(self.name,self.line)## def run(self):# Vehicle.run(self)#引用父类的函数属性# print("%s %s x线"%(self.name,self.line))## line13=Subway("北京地铁","100m/s","1000","13")## line13.show_info()# line13.run()# 以上问题出现修改父类名称后面的都需要修改比较麻烦# 下面使用supper来解决上面问题：不用传self参数 和 修改父类名其他不用改class Vehicle1:#定义交通工具 Country="China" def __init__(self,name,speed,load): self.name=name self.spedd=speed self.load=load def run(self): print("开动了")class Subway(Vehicle1):#定义个地铁 def __init__(self,name,speed,load,line): super().__init__(name,speed,load)#通过super的方法直接调用父类属性 self.line=line def show_info(self): print(self.name,self.line) def run(self): super().run()#不用传自己的self print("%s %s x线"%(self.name,self.line))line13=Subway("北京地铁","100m/s","1000","13")line13.show_info()line13.run()
来源：https://www.cnblogs.com/jianchixuexu/p/11666914.html