import random


class Deck:
    """牌组类"""

    def __init__(self):
        self.cards = []
        self.reset()

    def reset(self):
        """重置并洗牌"""
        suits = ['♠', '♥', '♣', '♦']
        ranks = [
            ('2', 2), ('3', 3), ('4', 4), ('5', 5), ('6', 6), ('7', 7),
            ('8', 8), ('9', 9), ('10', 10), ('J', 10), ('Q', 10),
            ('K', 10), ('A', 11)
        ]
        self.cards = [(suit, rank[0], rank[1]) for suit in suits for rank in ranks]
        random.shuffle(self.cards)

    def deal_card(self):
        """发一张牌"""
        return self.cards.pop()


class Player:
    """玩家类"""

    def __init__(self, name):
        self.name = name
        self.hand = []
        self.score = 0

    def add_card(self, card):
        """添加手牌"""
        self.hand.append(card)
        self.calculate_score()

    def calculate_score(self):
        """计算当前分数（处理A的1/11逻辑）"""
        self.score = sum(card[2] for card in self.hand)
        aces = sum(1 for card in self.hand if card[1] == 'A')

        # 如果爆牌且有A，将A视为1分
        while self.score > 21 and aces > 0:
            self.score -= 10
            aces -= 1

    def show_hand(self, hide_first=False):
        """显示手牌"""
        if hide_first:
            print(f"{self.name}的手牌: [隐藏牌], {self.hand[1][0]}{self.hand[1][1]}")
        else:
            cards = ' '.join([f"{card[0]}{card[1]}" for card in self.hand])
            print(f"{self.name}的手牌: {cards} | 分数: {self.score}")


class BlackjackGame:
    """21点游戏类"""

    def __init__(self):
        self.deck = Deck()
        self.player = Player("玩家")
        self.dealer = Player("庄家")

    def initial_deal(self):
        """初始发牌"""
        for _ in range(2):
            self.player.add_card(self.deck.deal_card())
            self.dealer.add_card(self.deck.deal_card())

    def player_turn(self):
        """玩家回合"""
        while True:
            self.player.show_hand()
            if self.player.score >= 21:
                return

            action = input("要牌(H)还是停牌(S)? ").upper()
            if action == 'H':
                self.player.add_card(self.deck.deal_card())
            elif action == 'S':
                break
            else:
                print("无效输入，请输入H或S")

    def dealer_turn(self):
        """庄家回合（自动逻辑）"""
        self.dealer.show_hand()
        while self.dealer.score < 17:
            self.dealer.add_card(self.deck.deal_card())
            self.dealer.show_hand()

    def check_winner(self):
        """判断胜负"""
        p_score = self.player.score
        d_score = self.dealer.score

        print("\n=== 最终结果 ===")
        self.player.show_hand()
        self.dealer.show_hand()

        if p_score > 21:
            print("玩家爆牌，庄家赢！")
        elif d_score > 21:
            print("庄家爆牌，玩家赢！")
        elif p_score > d_score:
            print("玩家赢！")
        elif d_score > p_score:
            print("庄家赢！")
        else:
            print("平局！")

    def play_game(self):
        """开始游戏"""
        print("=== 21点游戏 ===")
        self.initial_deal()

        # 显示庄家的明牌
        self.dealer.show_hand(hide_first=True)

        # 玩家回合
        self.player_turn()

        # 如果玩家没爆牌才进行庄家回合
        if self.player.score <= 21:
            self.dealer_turn()

        self.check_winner()


if __name__ == "__main__":
    while True:
        game = BlackjackGame()
        game.play_game()
        if input("\n再玩一次？(Y/N) ").upper() != 'Y':
            break