多继承 当父类有重名的属性时 ，嫡长子（最左边的类中的属性）存在

class Phone:
    IMEI=2020001
    producer="apple"
    def call_by_4g(self):
        print("4g通话")
class NFCReader:
    nfc_type="第五代"
    producer="apple"
    def read_card(self):
        print("读取NFC卡")
    def write_card(self):
        print("写nfc卡")
class RemoteControl:
      rc_type="红外遥控"
      def control(self):
          print("红外遥控开启")
class MyPhone(Phone,NFCReader,RemoteControl):
    pass


#实例化某个对象
phone1=MyPhone()
print(phone1.producer)
phone1.write_card()
phone1.control()

'''
apple
写nfc卡
红外遥控开启
'''