诗与浪子的博客

from abc import ABC, abstractmethodclass PriceComputer(ABC): @abstractmethod def compute_price(self): passclass Goods(PriceComputer): def __init__(self, price): self.price = price def compute_price(self): re

from abc import ABC, abstractmethod# Adapteeclass Power110V: def output(self): return 110# Adapteeclass Power20V: def output(self): return 20# Targetclass PowerStandard(ABC): @abstractmethod def output220V(self):

class CPU: def compute(self, instructions): """提供计算功能""" print(eval(instructions))class Disk: def __init__(self): self.data = {} def persist(self, data): """提供数据持久化功能""" self.data.update(data)cla

class Memento: def __init__(self, state): self.state = state def set_state(self, state): self.state = state def get_state(self): return self.stateclass Caretaker: def __init__(self): self.memento_table

from abc import ABC, abstractmethodclass Request: def __init__(self, cookie=None, user_agent=None): self.cookie = cookie self.user_agent = user_agentclass Filter(ABC): @abstractmethod def filter(self, request): p