从一副纸牌列表附加到python中的玩家手牌列表答案

【问题标题】：Appending from a deck of cards list to a players hand list in python从一副纸牌列表附加到python中的玩家手牌列表
【发布时间】：2022-06-17 19:54:19
【问题描述】：

我已经尝试了大约一个星期来完成这项工作。我的目标是获取卡片列表并将列表项 0、1 和 2 附加到 user_hand 列表中。当我运行代码时，我会得到诸如 main.Card object at 0x0000021DA02924D0> 打印而不是 A♥。我做错了什么来产生这样的错误？这是我第一次使用 python 类，所以我可能会在那里绊倒。

import random
user_hand = []
class Card():
    def __init__(self, name, suit):
        self.name = name
        self.suit = suit
    def print_card(self):
        suits = {"H":"♥","D":"♦","C":"♣","S":"♠"}
        print(f"{self.name}{suits[self.suit]}")

class Carddeck():
    def __init__(self):
        self.cards = []
        
        names = ("2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K", "A")
        suits = ("H", "D", "C", "S")

        for suit in suits:
            for name in names:
                card = Card(name, suit)
                self.cards.append(card)

    def cupid(self):
        random.shuffle(self.cards)

    def dealing(self):
        user_hand.append(self.cards[0])
        user_hand.append(self.cards[1])
        user_hand.append(self.cards[2])

card = Card("A", "H")
card.print_card()
deck = Carddeck() # creates the deck.
deck.cupid() # shuffles the deck
deck.dealing() # deals to player, but this gives the strange output
for card in deck.cards:
    card.print_card()
print(user_hand)

【问题讨论】：

标签： python class append playing-cards

【解决方案1】：

当 python 尝试打印列表时，它会打印每个对象的表示。您可以使用__repr__ 自定义此行为。你已经有一个print_card 方法，所以你可以修改它。然后，打印卡片，只需print(my_card)。

import random
user_hand = []
class Card():
    def __init__(self, name, suit):
        self.name = name
        self.suit = suit

    def __repr__(self):  # python uses this to print itself
        suits = {"H":"♥","D":"♦","C":"♣","S":"♠"}
        return f"{self.name}{suits[self.suit]}"

class Carddeck():
    def __init__(self):
        self.cards = []
        
        names = ("2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K", "A")
        suits = ("H", "D", "C", "S")

        for suit in suits:
            for name in names:
                card = Card(name, suit)
                self.cards.append(card)

    def cupid(self):
        random.shuffle(self.cards)

    def dealing(self):
        user_hand.append(self.cards[0])
        user_hand.append(self.cards[1])
        user_hand.append(self.cards[2])

card = Card("A", "H")
print(card)
deck = Carddeck()
deck.cupid()
deck.dealing()
for card in deck.cards:
    print(card)
print(user_hand)
# A♥
# 8♠
# 10♦
# 2♠
# 2♦
# ...
# [8♠, 10♦, 2♠]

【讨论】：

【解决方案2】：

我会创建一个名为 Player 的新类，并将 self.hand 作为一个空列表，然后您可以用抽出的牌填充手牌

您还需要在 Card 类中将 show 定义为您的 print(f"{self.name}{self.suit}")

除了你使用的交易，我使用

def drawCard(self): 
     card = self.cards.pop() 
     return card

#Create Player      
class Player(object):
    def __init__(self, name):
        self.name = name
        self.hand = []
    
    def draw(self, deck):
        self.hand.append(deck.drawCard())

    def showHand(self):
        for card in self.hand:
            card.show()
            
    def showcard(self):     
        for card in self.hand:
            card.render()
    
    def discard(self):
        return self.hand.pop()

【讨论】：