我刚刚开始学习Python，我正在编写一个基本的21点游戏。我已经有了一些基本的东西，但是我想在这里和那里增加一点技巧。我正在寻找一种方式，用我的while循环开始处的简介函数代替new_round函数。
我的想法是，我可以在顶部运行一个循环计数器，这将决定要运行哪个函数以及if / elif语句。
可以说，它不起作用。首先，我想知道为什么不这样做，其次，我想找到一种方法！
import random
suits = ('Hearts', 'Diamonds', 'Spades', 'Clubs')
ranks = ('Two', 'Three', 'Four', 'Five', 'Six', 'Seven', 'Eight', 'Nine', 'Ten', 'Jack', 'Queen', 'King', 'Ace')
values = {'Two':2, 'Three':3, 'Four':4, 'Five':5, 'Six':6, 'Seven':7, 'Eight':8, 'Nine':9, 'Ten':10, 'Jack':10, 'Queen':10, 'King':10, 'Ace':11}
player_name = ''
playing = True
class Card:
def __init__(self,suit,rank):
self.suit = suit
self.rank = rank
def __str__(self):
return f'{self.rank} of {self.suit}'
class Deck:
def __init__(self):
self.deck = []
for suit in suits:
for rank in ranks:
self.deck.append(Card(suit,rank))
def __str__(self):
deck_comp = ''
for card in self.deck:
deck_comp += '\n '+card.__str__()
return 'The deck has:' + deck_comp
def shuffle(self):
random.shuffle(self.deck)
def deal(self):
single_card = self.deck.pop()
return single_card
class Hand:
def __init__(self):
self.cards = []
self.value = 0
self.aces = 0
def add_card(self,card):
self.cards.append(card)
self.value += values[card.rank]
if card.rank == 'Ace':
self.aces += 1
def adjust_for_ace(self):
#if value of players hand is over 21 and includes an ace then the player will automatically have the ace value reduced to 1
#also track ace counter will revert to 0
while self.value > 21 and self.aces > 0:
self.value -= 10
self.aces -= 1
class Chips:
def __init__(self,total):
self.total = total
self.bet = 0
def win_bet(self):
self.total += self.bet
def lose_bet(self):
self.total -= self.bet
def take_bet(chips):
while True:
try:
player_chips.bet = int(input('How many chips would you like to bet?: '))
except ValueError:
print('\nSorry, the number of chips must be a number!')
else:
if player_chips.bet > player_chips.total:
print(f"\nSorry guy, your bet can't exceed {player_chips.total} chips.")
else:
print(f"\nYour bet of {player_chips.bet} chips has been accepted - good luck!")
break
def introduction():
global player_name
print("\nWelcome to BlackJack! Get as close to 21 as you can without busting.\n\nThe Dealer will hit up to 17, Face cards count as 10 and Aces are 1/11.")
player_name=input("The first round is about to begin, what is your name friend?: ")
def next_round():
global player_name
print("Hey ho, let's go another round!")
def chip_count():
global player_name
print(f"{player_name}, your current chip count stands at {player_chips.total}")
def play_again():
global player_name
global playing
while True:
replay = input(f"{player_name}, would you like to play another round?: ").upper()
if replay[0] == 'Y':
return True
elif replay[0] == 'N':
print(f"\nThanks for playing - you leave the table with {player_chips.total} chips.")
break
else:
print("Sorry, I don't understand what you are saying, do you want to play the next round, or not? Y or N!: ")
continue
def total():
global player_name
while True:
try:
total = int(input(f'Hello {player_name}, how many chips will you be using this game?: '))
except ValueError:
print('\nSorry, the number of chips must be a number!')
else:
return total
print(f"\nWelcome to the table - you currently have {total} chips to play with.")
def hit(deck,hand):
#run the add card function within the Hand Class with the card argument being generated by the deal function within the Deck Class.
hand.add_card(deck.deal())
hand.adjust_for_ace()
def hit_or_stand(deck,hand):
global player_name
global playing
while True:
response = input(f"{player_name}, Would you like to hit or stand?: ")
if response[0].upper() == 'H':
hit(deck,hand)
elif response[0].upper() == 'S':
print(f"{player_name} stands. It is the Dealer's turn")
playing = False
else:
print("\nI can't understand what you are saying - are you hitting or standing?!")
continue
break
def show_some(player,dealer):
print("\nDealer's Hand:")
print("<card hidden>")
print(dealer.cards[1])
print("\nPlayer's Hand: ",*player.cards, sep='\n')
print("Value of your cards: ",player.value)
def show_all(player,dealer):
print("\nDealer's Hand: ",*dealer.cards, sep='\n')
print("Dealer's Hand = ",dealer.value)
print("\nPlayer's Hand: ",*player.cards, sep='\n')
print("Player's Hand = ",player.value)
def player_busts(player,dealer,chips):
global player_name
print(f"{player_name} busts!")
chips.lose_bet()
def player_wins(player,dealer,chips):
global player_name
print(f"{player_name} wins the round!")
chips.win_bet()
def dealer_busts(player,dealer,chips):
print("Dealer busts!")
chips.win_bet()
def dealer_wins(player,dealer,chips):
print("Dealer wins!")
chips.lose_bet()
def push(player,dealer,chips):
print("You have tied with the Dealer! It's a push, your chips have been refunded.")
############################################################################################################################################################
while True:
counter = 0
if counter > 0:
next_round()
elif counter == 0:
introduction()
#Create & shuffle the deck, deal 2 cards to each player.
deck = Deck()
deck.shuffle()
player_hand = Hand()
player_hand.add_card(deck.deal())
player_hand.add_card(deck.deal())
dealer_hand = Hand()
dealer_hand.add_card(deck.deal())
dealer_hand.add_card(deck.deal())
#Set up Player's chips
player_chips = Chips(total())
#Prompt the Player for their bet
take_bet(player_chips)
#Show cards (keep one dealer card hidden)
show_some(player_hand,dealer_hand)
while playing == True:
#Prompt for player hit or stand
hit_or_stand(deck,player_hand)
#show cards (keep one dealer card hidden)
show_some(player_hand,dealer_hand)
#if player's hand exceeds 21, player busts - break loop
if player_hand.value > 21:
player_busts(player_hand,dealer_hand,player_chips)
break
#if player hasn't bust, play dealer's hand until dealer reaches 17 or busts.
if player_hand.value <= 21:
while dealer_hand.value < 17:
hit(deck,dealer_hand)
#show all cards
show_all(player_hand,dealer_hand)
#run different winning scenarios
if dealer_hand.value > 21:
dealer_busts(player_hand,dealer_hand,player_chips)
elif dealer_hand.value > player_hand.value:
dealer_wins(player_hand,dealer_hand,player_chips)
elif dealer_hand.value < player_hand.value:
player_wins(player_hand,dealer_hand,player_chips)
else:
push(player_hand,dealer_hand,player_chips)
#inform player of their current chip count.
chip_count()
counter += 1
#play another round?
if play_again() == True:
continue
else:
break
您将在每个循环的开始将counter重置为0。
您可能打算在循环开始之前将其设置为0，然后让每个循环都增加它。
而不是：
while True:
counter = 0
if counter > 0:
尝试：
counter = 0
while True:
if counter > 0:
代码中的问题是，每次循环执行While True:循环时，都将变量counter设置为零。...因此，即使在循环结束时增加counter，然后在循环重新启动时立即将其设置回零。
完成您正在寻找的内容的另一种方法是在introduction()循环之前运行While True:函数，然后编辑代码的最后几行以调用next_round()函数，如下所示：] >
if play_again() == True:
next_round()
continue