Blackjack python 脚本，重新启动游戏时出现流程错误
Blackjack python script, flow error when restarting game
我是 Python 新手，但我尝试编写了 21 点脚本。在调试并纠正所有明显的错误后，我遇到了一个我无法弄清楚的奇怪事件。
当 total >21 时，它似乎跳过了 while (total < 21) and (stand != True): 代码块，即使在游戏循环开始时我将所有相关变量归零。
我花了太多时间试图解决这个问题，我不禁认为这有一个明显的解决方案。
我不明白为什么 while (total < 21) and (stand != True): 似乎被跳过了，尽管它应该是每场比赛开始时的真实陈述。
下面是完整的代码。请自行测试以了解我的意思。
import pygame
import random
print("Welcome to PyBlackjack V1.0")
done = False
while not done:
# --- Reset our Hands ---
dealerhand = 0
split = False
stand = False
total = 0
# --- Dealing the Player's hand. ---
print("Dealer is dealing hand.")
firstcard = random.randrange(1, 15)
print("First card:",str(firstcard),)
secondcard = random.randrange(1, 15)
print("Second card:",str(secondcard),)
total = (firstcard + secondcard)
print("Hand:",str(total),)
# --- Bust Check ---
if total > 21:
print("Bust! Game Over.")
newgame = input("Play again? Y/N: ")
if str(newgame) == "n":
done = True
break
else:
print("Starting new game! Good Luck!")
dealerfirstcard = random.randrange(1, 15)
dealerholecard = random.randrange(1, 15)
dealerhand = (dealerfirstcard + dealerholecard)
print("Dealer's Hand:",str(dealerfirstcard))
# --- Player decides what to do ---
while (total < 21) and (stand != True):
if split != True:
print("Hand:",str(total))
elif split == True:
print("Left hand:",str(lefthand),"| Right hand:",str(righthand))
playerchoice = input("Hit (1), Double Down(2), Split(3), Stand(4)?")
if int(playerchoice) == 1:
total += random.randrange(1, 15)
elif int(playerchoice) == 2:
#Reserved
break
elif int(playerchoice) == 3:
if ((firstcard + secondcard) / 2) == firstcard and split != True:
lefthand = (firstcard + random.randrange(1, 15))
righthand = (secondcard + random.randrange(1, 15))
split = True
else:
print("You cannot split this hand!")
elif int(playerchoice) == 4:
print("You stand.")
stand = True
else:
print("Invalid Choice!")
print("Hand:",total,)
if total > 21:
print("Bust! Game Over.")
newgame = input("Play again? Y/N: ")
if str(newgame) == "n":
done = True
break
else:
print("Starting new game! Good Luck!")
print("Dealer reveals hole card...")
print("Dealer Hand:",str(dealerhand),)
# --- Dealer hits until >= 17 ---
while dealerhand < 17:
print("Dealer hits...")
dealerhand = (dealerhand + random.randrange(1, 15))
print("Dealer hand:",dealerhand,)
# --- Deciding who wins ---
if dealerhand > 21:
print("Dealer busts! You win!")
elif dealerhand >= 17:
print("Your hand:",total,"| Dealer hand:",dealerhand,)
if split != True:
if dealerhand >= total:
print("You lose!")
elif dealerhand < total:
print("You win!")
elif split == True:
if lefthand > dealerhand:
print("Left hand wins!")
elif lefthand < dealerhand:
print("Left hand loses!")
else:
print("An error occured. Ending program.")
done = True
break
if righthand > dealerhand:
print("Right hand wins!")
elif righthand < dealerhand:
print("Right hand loses!")
else:
print("An error occured. Ending program.")
done = True
break
# --- To loop or not to loop ---
newgame = input("Play again? Y/N: ")
if str(newgame) == "n":
done = True
break
else:
print("Starting new game! Good Luck!")
如果用户失败并选择开始新游戏，您的代码不会从 while not done 循环的开头开始，它只会继续前进。因此，当您到达 while (total < 21) and (stand != True) 行时，总计仍然是导致用户破产的总计。
您似乎正在 {while not done:} 中玩游戏
它只会在玩家输入 "n" 时脱离它
但是开始新游戏的功能在代码中晚于变量赋值，我相信它永远不会重新启动。
此外，如果您将其分解为更小的函数或方法，这将有助于您的编码。
下面是（某种）工作代码。它仍然实现了 Blackjack 的一个奇怪变体（等级从 1 到 15，没有算作 1 或 11 的 A 之类的东西，击中后允许拆分）。一般拆分在这里处理得不好......我认为你可以拆分然后仍然 hit/etc.?但是击球不会更新任何一个分裂的手，再次分裂也不会做任何事情。我会留给你来解决这些逻辑错误。
我认为@Martin 的回答可以很好地解释您所描述的问题。我最终只是用 else 简化了这个逻辑来处理非半身像的情况。顺便说一句，如果您真正想要的只是 break.
，则无需使用 stand 或 done 之类的标志来退出循环
我还清理了一些杂项...删除了一些不必要的转换为 str，清理了检测玩家半身、检测和打印推送等的逻辑。请参阅下面的完整代码并付款注意差异。
import random
print("Welcome to PyBlackjack V1.0")
while True:
# --- Reset our Hands ---
dealerhand = 0
split = False
total = 0
# --- Dealing the Player's hand. ---
print("Dealer is dealing hand.")
firstcard = random.randrange(1, 15)
print("First card:", firstcard)
secondcard = random.randrange(1, 15)
print("Second card:", secondcard)
total = firstcard + secondcard
print("Hand:", total)
dealerfirstcard = random.randrange(1, 15)
dealerholecard = random.randrange(1, 15)
dealerhand = dealerfirstcard + dealerholecard
print("Dealer's hole card:", dealerfirstcard)
# --- Player decides what to do ---
while total < 21:
if not split:
print("Hand:", total)
else:
print("Left hand:", lefthand, "| Right hand:", righthand)
playerchoice = int(input("Hit (1), Double Down(2), Split(3), Stand(4)? "))
if playerchoice == 1:
total += random.randrange(1, 15)
elif playerchoice == 2:
#Reserved
break
elif playerchoice == 3:
# NOTE: This will allow splitting even after hitting
if firstcard == secondcard and not split:
lefthand = firstcard + random.randrange(1, 15)
righthand = secondcard + random.randrange(1, 15)
split = True
else:
print("You cannot split this hand!")
elif playerchoice == 4:
print("You stand.")
break
else:
print("Invalid Choice!")
print("Hand:", total)
if total > 21:
print("Bust! Game Over.")
else:
print("Dealer reveals hole card...")
print("Dealer hand:", dealerhand)
# --- Dealer hits until >= 17 ---
while dealerhand < 17:
print("Dealer hits...")
dealerhand += random.randrange(1, 15)
print("Dealer hand:", dealerhand)
# --- Deciding who wins ---
if dealerhand > 21:
print("Dealer busts! You win!")
else:
print("Your hand:", total, "| Dealer hand:", dealerhand)
if not split:
if dealerhand >= total:
print("You lose!")
elif dealerhand < total:
print("You win!")
else:
print("Push.")
else:
if lefthand > dealerhand:
print("Left hand wins!")
elif lefthand < dealerhand:
print("Left hand loses!")
else:
print("Push.")
if righthand > dealerhand:
print("Right hand wins!")
elif righthand < dealerhand:
print("Right hand loses!")
else:
print("Push.")
# --- To loop or not to loop ---
newgame = input("Play again? Y/N: ")
if str(newgame) == "n":
break
else:
print("Starting new game! Good Luck!")
我是 Python 新手，但我尝试编写了 21 点脚本。在调试并纠正所有明显的错误后，我遇到了一个我无法弄清楚的奇怪事件。
当 total >21 时，它似乎跳过了 while (total < 21) and (stand != True): 代码块，即使在游戏循环开始时我将所有相关变量归零。
我花了太多时间试图解决这个问题，我不禁认为这有一个明显的解决方案。
我不明白为什么 while (total < 21) and (stand != True): 似乎被跳过了，尽管它应该是每场比赛开始时的真实陈述。
下面是完整的代码。请自行测试以了解我的意思。
import pygame
import random
print("Welcome to PyBlackjack V1.0")
done = False
while not done:
# --- Reset our Hands ---
dealerhand = 0
split = False
stand = False
total = 0
# --- Dealing the Player's hand. ---
print("Dealer is dealing hand.")
firstcard = random.randrange(1, 15)
print("First card:",str(firstcard),)
secondcard = random.randrange(1, 15)
print("Second card:",str(secondcard),)
total = (firstcard + secondcard)
print("Hand:",str(total),)
# --- Bust Check ---
if total > 21:
print("Bust! Game Over.")
newgame = input("Play again? Y/N: ")
if str(newgame) == "n":
done = True
break
else:
print("Starting new game! Good Luck!")
dealerfirstcard = random.randrange(1, 15)
dealerholecard = random.randrange(1, 15)
dealerhand = (dealerfirstcard + dealerholecard)
print("Dealer's Hand:",str(dealerfirstcard))
# --- Player decides what to do ---
while (total < 21) and (stand != True):
if split != True:
print("Hand:",str(total))
elif split == True:
print("Left hand:",str(lefthand),"| Right hand:",str(righthand))
playerchoice = input("Hit (1), Double Down(2), Split(3), Stand(4)?")
if int(playerchoice) == 1:
total += random.randrange(1, 15)
elif int(playerchoice) == 2:
#Reserved
break
elif int(playerchoice) == 3:
if ((firstcard + secondcard) / 2) == firstcard and split != True:
lefthand = (firstcard + random.randrange(1, 15))
righthand = (secondcard + random.randrange(1, 15))
split = True
else:
print("You cannot split this hand!")
elif int(playerchoice) == 4:
print("You stand.")
stand = True
else:
print("Invalid Choice!")
print("Hand:",total,)
if total > 21:
print("Bust! Game Over.")
newgame = input("Play again? Y/N: ")
if str(newgame) == "n":
done = True
break
else:
print("Starting new game! Good Luck!")
print("Dealer reveals hole card...")
print("Dealer Hand:",str(dealerhand),)
# --- Dealer hits until >= 17 ---
while dealerhand < 17:
print("Dealer hits...")
dealerhand = (dealerhand + random.randrange(1, 15))
print("Dealer hand:",dealerhand,)
# --- Deciding who wins ---
if dealerhand > 21:
print("Dealer busts! You win!")
elif dealerhand >= 17:
print("Your hand:",total,"| Dealer hand:",dealerhand,)
if split != True:
if dealerhand >= total:
print("You lose!")
elif dealerhand < total:
print("You win!")
elif split == True:
if lefthand > dealerhand:
print("Left hand wins!")
elif lefthand < dealerhand:
print("Left hand loses!")
else:
print("An error occured. Ending program.")
done = True
break
if righthand > dealerhand:
print("Right hand wins!")
elif righthand < dealerhand:
print("Right hand loses!")
else:
print("An error occured. Ending program.")
done = True
break
# --- To loop or not to loop ---
newgame = input("Play again? Y/N: ")
if str(newgame) == "n":
done = True
break
else:
print("Starting new game! Good Luck!")
如果用户失败并选择开始新游戏，您的代码不会从 while not done 循环的开头开始，它只会继续前进。因此，当您到达 while (total < 21) and (stand != True) 行时，总计仍然是导致用户破产的总计。
您似乎正在 {while not done:} 中玩游戏 它只会在玩家输入 "n" 时脱离它 但是开始新游戏的功能在代码中晚于变量赋值，我相信它永远不会重新启动。 此外，如果您将其分解为更小的函数或方法，这将有助于您的编码。
下面是（某种）工作代码。它仍然实现了 Blackjack 的一个奇怪变体（等级从 1 到 15，没有算作 1 或 11 的 A 之类的东西，击中后允许拆分）。一般拆分在这里处理得不好......我认为你可以拆分然后仍然 hit/etc.?但是击球不会更新任何一个分裂的手，再次分裂也不会做任何事情。我会留给你来解决这些逻辑错误。
我认为@Martin 的回答可以很好地解释您所描述的问题。我最终只是用 else 简化了这个逻辑来处理非半身像的情况。顺便说一句，如果您真正想要的只是 break.
stand 或 done 之类的标志来退出循环
我还清理了一些杂项...删除了一些不必要的转换为 str，清理了检测玩家半身、检测和打印推送等的逻辑。请参阅下面的完整代码并付款注意差异。
import random
print("Welcome to PyBlackjack V1.0")
while True:
# --- Reset our Hands ---
dealerhand = 0
split = False
total = 0
# --- Dealing the Player's hand. ---
print("Dealer is dealing hand.")
firstcard = random.randrange(1, 15)
print("First card:", firstcard)
secondcard = random.randrange(1, 15)
print("Second card:", secondcard)
total = firstcard + secondcard
print("Hand:", total)
dealerfirstcard = random.randrange(1, 15)
dealerholecard = random.randrange(1, 15)
dealerhand = dealerfirstcard + dealerholecard
print("Dealer's hole card:", dealerfirstcard)
# --- Player decides what to do ---
while total < 21:
if not split:
print("Hand:", total)
else:
print("Left hand:", lefthand, "| Right hand:", righthand)
playerchoice = int(input("Hit (1), Double Down(2), Split(3), Stand(4)? "))
if playerchoice == 1:
total += random.randrange(1, 15)
elif playerchoice == 2:
#Reserved
break
elif playerchoice == 3:
# NOTE: This will allow splitting even after hitting
if firstcard == secondcard and not split:
lefthand = firstcard + random.randrange(1, 15)
righthand = secondcard + random.randrange(1, 15)
split = True
else:
print("You cannot split this hand!")
elif playerchoice == 4:
print("You stand.")
break
else:
print("Invalid Choice!")
print("Hand:", total)
if total > 21:
print("Bust! Game Over.")
else:
print("Dealer reveals hole card...")
print("Dealer hand:", dealerhand)
# --- Dealer hits until >= 17 ---
while dealerhand < 17:
print("Dealer hits...")
dealerhand += random.randrange(1, 15)
print("Dealer hand:", dealerhand)
# --- Deciding who wins ---
if dealerhand > 21:
print("Dealer busts! You win!")
else:
print("Your hand:", total, "| Dealer hand:", dealerhand)
if not split:
if dealerhand >= total:
print("You lose!")
elif dealerhand < total:
print("You win!")
else:
print("Push.")
else:
if lefthand > dealerhand:
print("Left hand wins!")
elif lefthand < dealerhand:
print("Left hand loses!")
else:
print("Push.")
if righthand > dealerhand:
print("Right hand wins!")
elif righthand < dealerhand:
print("Right hand loses!")
else:
print("Push.")
# --- To loop or not to loop ---
newgame = input("Play again? Y/N: ")
if str(newgame) == "n":
break
else:
print("Starting new game! Good Luck!")