这次让我们来用Python实现一个21点扑克游戏
首先我们要初始化一套扑克牌，并将它打乱
def get_shuffled_deck():
"""初始化包括52张扑克牌的列表，并混排后返回，表示一副洗好的扑克牌"""
# 花色suits和序号
suits = {
'♣', '♠', '♦', '♥'}
ranks = {
'2', '3', '4', '5', '6', '7', '8', '9', '10', 'J', 'Q', 'K', 'A'}
deck = []
# 创建一副52张的扑克牌
for suit in suits:
for rank in ranks:
deck.append(suit + ' ' + rank)
random.shuffle(deck)
# print(deck)
return deck
然后呢 我们要写一个函数，去计算手牌的点数，好判断是否会超过21点
def compute_total(hand):
"""计算并返回一手牌的点数和"""
values = {
'2': 2, '3': 3, '4': 4, '5': 5, '6': 6, '7': 7, '8': 8,
'9': 9, '10': 10, 'J': 0.5, 'Q': 0.5, 'K': 0.5, 'A': 1}
result = 0 # 初始化点数和为0
# 计算点数和A的个数
for card in hand:
# print(card)
result += values[card[2:]]
return result
我们还要写一个简单的显示函数，告诉玩家手牌都有啥
def print_hand(hand):
"""将牌打印"""
for card in hand:
print(card, end=' ')
print()
接下来 完善一下发牌规则
def deal_card(deck, participant, flag):
"""发一张牌给参与者participant"""
card = deck.pop()
if flag:
flag_1 = input('是否开启高级玩家模式（输入H）')
if flag_1 == 'H':
password = input('输入高级玩家密码：')
# password=123456
if password == '123456':
print(card)
flag_2 = input('是否要这张牌（输入是/否）:')
if flag_2 == '是':
participant.append(card)
return card
else:
return
else:
print('输入密码错误')
print('直接发牌')
participant.append(card)
return card
else:
participant.append(card)
return card
else:
participant.append(card)
if compute_total(participant) > 21:
participant.pop()
return
else:
return card
最后 就是最关键的主体函数 游戏的核心
def blackjack():
global money
deck = get_shuffled_deck()
house = [] # 庄家的牌
player = [] # 玩家的牌
# 依次给玩家和庄家各发两张牌
for i in range(2):
deal_card(deck, player, False)
deal_card(deck, house, False)
# 打印一手牌
print('庄家的牌：', end='')
print_hand(house)
print('玩家的牌：', end='')
print_hand(player)
bet = 10
print('下注10元')
# print(len(house))
# 询问玩家是否继续拿牌，如果是，继续给玩家发牌
answer = input('是否继续拿牌（y/n，缺省为y）：')
while True:
while answer in ('', 'y', 'Y'):
if len(player) >= 5:
break
card = deal_card(deck, player, True)
print('玩家拿到的牌为：', end='')
print_hand(player)
flag = input('是否加注（是/否）：')
if flag == '是':
bet_num = int(input('加注多少元:'))
if bet_num + bet > money:
print('穷货，你没那么多钱')
else:
bet += bet_num
print('加注成功，当前下注金额：', bet)
# 计算牌点
if compute_total(player) > 21:
print('爆掉 玩家输牌!')
money -= int(bet * random.uniform(1, 2))
return
answer = input('是否继续拿牌（y/n，缺省为y）：')
# 庄家(计算机人工智能)按“庄家规则”确定是否拿牌
while compute_total(house) < 17:
if len(house) >= 5:
break
card = deal_card(deck, house, False)
print('庄家拿到的牌为：', end='')
print_hand(house)
answer = input('是否进入结算（y/n，缺省为y）：')
if answer in ('', 'y', 'Y'):
break
# 分别计算庄家和玩家的点数，比较点数大小，输出输赢结果信息
houseTotal, playerTotal = compute_total(house), compute_total(player)
if houseTotal > playerTotal:
print('庄家赢牌!')
money -= int(bet * random.uniform(1, 2))
elif houseTotal < playerTotal:
print('玩家赢牌!')
money += int(bet * random.uniform(1, 2))
# 拥有blackjack的庄家赢牌
elif houseTotal == 21 and 2 == len(house) < len(player):
print('庄家赢牌!')
money -= int(bet * random.uniform(1, 2))
# 拥有blackjack的玩家赢牌
elif playerTotal == 21 and 2 == len(player) < len(house):
print('玩家赢牌!')
money += int(bet * random.uniform(1, 2))
else:
print('平局！')
完整代码如下：
import random
money = 100 # 玩家的总资产
def get_shuffled_deck():
"""初始化包括52张扑克牌的列表，并混排后返回，表示一副洗好的扑克牌"""
# 花色suits和序号
suits = {
'♣', '♠', '♦', '♥'}
ranks = {
'2', '3', '4', '5', '6', '7', '8', '9', '10', 'J', 'Q', 'K', 'A'}
deck = []
# 创建一副52张的扑克牌
for suit in suits:
for rank in ranks:
deck.append(suit + ' ' + rank)
random.shuffle(deck)
# print(deck)
return deck
def deal_card(deck, participant, flag):
"""发一张牌给参与者participant"""
card = deck.pop()
if flag:
flag_1 = input('是否开启高级玩家模式（输入H）')
if flag_1 == 'H':
password = input('输入高级玩家密码：')
# password=123456
if password == '123456':
print(card)
flag_2 = input('是否要这张牌（输入是/否）:')
if flag_2 == '是':
participant.append(card)
return card
else:
return
else:
print('输入密码错误')
print('直接发牌')
participant.append(card)
return card
else:
participant.append(card)
return card
else:
participant.append(card)
if compute_total(participant) > 21:
participant.pop()
return
else:
return card
def compute_total(hand):
"""计算并返回一手牌的点数和"""
values = {
'2': 2, '3': 3, '4': 4, '5': 5, '6': 6, '7': 7, '8': 8,
'9': 9, '10': 10, 'J': 0.5, 'Q': 0.5, 'K': 0.5, 'A': 1}
result = 0 # 初始化点数和为0
# 计算点数和A的个数
for card in hand:
# print(card)
result += values[card[2:]]
return result
def print_hand(hand):
"""将牌打印"""
for card in hand:
print(card, end=' ')
print()
def blackjack():
global money
deck = get_shuffled_deck()
house = [] # 庄家的牌
player = [] # 玩家的牌
# 依次给玩家和庄家各发两张牌
for i in range(2):
deal_card(deck, player, False)
deal_card(deck, house, False)
# 打印一手牌
print('庄家的牌：', end='')
print_hand(house)
print('玩家的牌：', end='')
print_hand(player)
bet = 10
print('下注10元')
# print(len(house))
# 询问玩家是否继续拿牌，如果是，继续给玩家发牌
answer = input('是否继续拿牌（y/n，缺省为y）：')
while True:
while answer in ('', 'y', 'Y'):
if len(player) >= 5:
break
card = deal_card(deck, player, True)
print('玩家拿到的牌为：', end='')
print_hand(player)
flag = input('是否加注（是/否）：')
if flag == '是':
bet_num = int(input('加注多少元:'))
if bet_num + bet > money:
print('穷货，你没那么多钱')
else:
bet += bet_num
print('加注成功，当前下注金额：', bet)
# 计算牌点
if compute_total(player) > 21:
print('爆掉 玩家输牌!')
money -= int(bet * random.uniform(1, 2))
return
answer = input('是否继续拿牌（y/n，缺省为y）：')
# 庄家(计算机人工智能)按“庄家规则”确定是否拿牌
while compute_total(house) < 17:
if len(house) >= 5:
break
card = deal_card(deck, house, False)
print('庄家拿到的牌为：', end='')
print_hand(house)
answer = input('是否进入结算（y/n，缺省为y）：')
if answer in ('', 'y', 'Y'):
break
# 分别计算庄家和玩家的点数，比较点数大小，输出输赢结果信息
houseTotal, playerTotal = compute_total(house), compute_total(player)
if houseTotal > playerTotal:
print('庄家赢牌!')
money -= int(bet * random.uniform(1, 2))
elif houseTotal < playerTotal:
print('玩家赢牌!')
money += int(bet * random.uniform(1, 2))
# 拥有blackjack的庄家赢牌
elif houseTotal == 21 and 2 == len(house) < len(player):
print('庄家赢牌!')
money -= int(bet * random.uniform(1, 2))
# 拥有blackjack的玩家赢牌
elif playerTotal == 21 and 2 == len(player) < len(house):
print('玩家赢牌!')
money += int(bet * random.uniform(1, 2))
else:
print('平局！')
if __name__ == '__main__':
while money > 0:
blackjack()
print('你的余额为：', money)
f = input('是否继续玩耍（是/否）：')
if f == '是':
continue
else:
break
else:
print('你破产了')
效果图：
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