from abc import ABCMeta, abstractmethod from enum import Enum class Person(metaclass=ABCMeta): @abstractmethod def get_name(self): raise NotImplementedError("You should implement this!") class Villager(Person): def get_name(self): return "Village Person" class CityPerson(Person): def get_name(self): return "City Person" class PersonType(Enum): RURAL = 1 URBAN = 2 class Factory: def get_person(self, person_type): if person_type == PersonType.RURAL: return Villager() elif person_type == PersonType.URBAN: return CityPerson() else: raise NotImplementedError("Unknown person type.") factory = Factory() person = factory.get_person(PersonType.URBAN) print(person.get_name())
摘自:wiki
原文地址:https://www.cnblogs.com/standby/p/8318821.html
时间: 2024-10-13 06:55:06