146 lines
3.8 KiB
Python
146 lines
3.8 KiB
Python
"""
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程序设计的范式(理念)：
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1. 指令式程序设计 - 汇编语言
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2. 面向过程程序设计 - 把一组指令封装成一个过程，需要执行这组指令时调用这个过程即可 - C
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3. 面向对象程序设计 - 将数据和操作数据的函数从逻辑上组织成了对象 - C++ / Java
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4. 函数式程序设计 - 函数是一等对象(一等公民) - Haskell
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面向对象程序设计步骤:
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1. 定义类 - 抽象过程 - 数据抽象(静态特征-属性)/行为抽象(动态特征-方法)
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2. 创建对象 - 构造器 - 初始化(__init__)
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3. 给对象发消息 - 对象引用.对象方法(参数)
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面向对象的三大支柱 - 封装 / 继承 / 多态
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类与类(对象与对象)之间的关系:
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1. is-a: 继承
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2. has-a: 关联 / 聚合 / 合成
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3. use-a: 依赖
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面向对象的设计原则/SOLID原则:
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1. 单一职责原则 - 类的设计要高内聚
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2. 开闭原则 - 接受扩展不接受修改 - 抽象是关键/用继承封装可变性
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3. 依赖倒转原则 - 面向抽象编程
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4. 里氏替换原则 - 任何时候都可以使用子类型对象替换父类型对象
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5. 接口隔离原则
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6. 合成聚合复用原则 - 优先考虑用强关联而不是继承去复用代码
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7. 最少知识原则(迪米特法则) - 不要跟陌生人讲话
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GoF设计模式 - 23种场景(Python中有16中已经被弱化)
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- 单例、工厂、原型、适配器、观察者、策略
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"""
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from enum import Enum
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from enum import unique
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import random
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# 经验: 符号常量优于字面常量
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# 枚举类型是定义符号常量的最佳选择
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# 如果一个变量的值只有有限多个选项那么最好使用枚举
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@unique
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class Suite(Enum):
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"""花色"""
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SPADE = 0
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HEART = 1
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CLUB = 2
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DIAMOND = 3
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class Card():
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"""牌"""
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def __init__(self, suite, face):
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self.suite = suite
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self.face = face
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def show(self):
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"""显示牌的花色和点数"""
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suites = ['♠️', '♥️', '♣️', '♦️']
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faces = [
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'', 'A', '2', '3', '4', '5', '6',
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'7', '8', '9', '10', 'J', 'Q', 'K'
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]
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return f'{suites[self.suite.value]} {faces[self.face]}'
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def __str__(self):
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return self.show()
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def __repr__(self):
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return self.show()
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class Poker():
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"""扑克"""
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def __init__(self):
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self.index = 0
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self.cards = [Card(suite, face)
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for suite in Suite
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for face in range(1, 14)]
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def shuffle(self):
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"""洗牌"""
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random.shuffle(self.cards)
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def deal(self):
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"""发牌"""
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temp = self.cards[self.index]
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self.index += 1
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return temp
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@property
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def has_more(self):
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"""是否有牌可以发"""
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return self.index < len(self.cards)
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class Player():
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"""玩家"""
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def __init__(self, name):
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self.name = name
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self.cards = []
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def get_one(self, card):
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"""摸一张牌"""
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self.cards.append(card)
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def drop_one(self, index):
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"""打出一张牌"""
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return self.cards.remove(index)
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def get_many(self, more_cards):
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"""摸多张牌"""
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self.cards += more_cards
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def drop_cards(self):
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"""扔掉所有牌"""
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self.cards.clear()
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def arrange(self):
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"""整理手上的牌"""
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self.cards.sort(key=lambda x: (x.suite.value, x.face))
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def main():
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"""主函数"""
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poker = Poker()
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poker.shuffle()
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players = [
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Player("东邪"), Player("西毒"),
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Player("南帝"), Player("北丐")
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]
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for _ in range(3):
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for player in players:
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if poker.has_more:
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player.get_one(poker.deal())
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for player in players:
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player.arrange()
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print(player.name)
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print(player.cards)
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if __name__ == '__main__':
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main()
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