Question

class Card:
RANKS = ['Ace', '2', '3', '4', '5', '6', '7', '8', '9', 'Jack', 'Queen', 'King']

def __init__(self, rank, suit):
    self.suit = suit
    self.rank = rank

def get_name(self):
    return Card.RANKS[self.rank - 1] + ' of ' + self.suit

def equals(self, other_card):
    if self.rank == self.other_card:
        return True
    elif self.rank != self.other_card:
        return False 

def greater_than(self, other_card):
    if self.rank > self.other_card:
        return True
    elif self.rank < self.other_card:
        return False

def less_than(self, other_card):
    if self.rank < self.other_card:
        return True
    elif self.rank > self.other_card:
        return False 


class Deck:
def __init__(self):
    self.available_cards = []
    self.dealt_cards = []
    for suit in ['Hearts', 'Spades', 'Diamonds', 'Clubs']:
        for rank in range(1, 14):
            self.available_cards.append(Card(rank, suit))

def shuffle(self):
    """
    Shuffles the cards in the deck.
    """
    import random
    return random.shuffle(self.available_cards)

def deal_card(self):
    self.available_cards.add(Card)
    self.available_cards.remove(Card)
    self.dealt_cards.append(Card)

def get_size(self):
    return len[self.available_cards]

c = Card()
print(c.available_cards)

d = Deck()
d.shuffle()
print(d.dealt_cards)

所以我在这里所做的是我已经制作了一个Card类和一个Deck类，但是我在执行它时遇到了麻烦。我试图通过改组它来测试这两个类，然后用它来处理一些卡片。但是，当我尝试运行它将无法正常工作。我该怎么办？

Answer 1

肯定有一个问题：

c = Card()
print(c.available_cards)

因为1）Card类的构造函数是否有2个参数（rank和suit和2），所以Cards类没有available_cards，所以试图访问c.available_cards将无效

所以不知道你对这两行的意图我省略了进一步的调试。

现在你在做：

d = Deck()

好的，这不需要任何参数，并创建一个包含标准52牌组中所有牌的新牌组，并将dealt_cards初始化为[]。

现在你立即打印

print(d.dealt_cards)

当然会产生一个空列表：

print(d.dealt_cards)
>>>[]

你可能想要的可能是首先处理一些卡然后打印结果：

for i in range(4):
    d.deal_card()
print(d.dealt_cards)

但是这会导致错误消息，因为deal_card不正确。您不想向available_cards添加任何内容，但会从中删除一项并将其添加到dealt_cards，如下所示：

def deal_card(self):
    # self.available_cards.add(Card)
    # self.available_cards.remove(Card)
    self.dealt_cards.append(self.available_cards.pop())

现在您会注意到print(d.dealt_cards)没有以“漂亮”的方式输出列表中的卡片，而是您可能会看到如下内容：

[<__main__.Card object at 0x00000285E8C0A978>, <__main__.Card object at 0x00000285E8C0AA58>, <__main__.Card object at 0x00000285E8C0A4E0>, <__main__.Card object at 0x00000285E8BFCF28>]

那是因为你没有教你的脚本如何打印卡片。为此，我们向Cards类添加一个方法：

def __repr__(self):
    return self.get_name()

现在每当打印一个卡片类的实例时，我们都会得到所需的输出。

最终代码：

class Card:


    def __init__(self, rank, suit):
        self.suit = suit
        self.rank = rank
        self.ranks = ['Ace', '2', '3', '4', '5', '6', '7', '8', '9', 'Jack', 'Queen', 'King']
    def get_name(self):
        return Card.ranks[self.rank - 1] + ' of ' + self.suit

    def equals(self, other_card):
        if self.rank == other_card.rank:
            return True
        elif self.rank != other_card.rank:
            return False

    def greater_than(self, other_card):
        if self.rank > other_card.rank:
            return True
        elif self.rank < other_card.rank:
            return False

    def less_than(self, other_card):
        if self.rank < other_card.rank:
            return True
        elif self.rank > other_card.rank:
            return False

    def __repr__(self):
        return self.get_name()


class Deck:
    def __init__(self):
        self.available_cards = []
        self.dealt_cards = []
        for suit in ['Hearts', 'Spades', 'Diamonds', 'Clubs']:
            for rank in range(1, 14):
                self.available_cards.append(Card(rank, suit))

    def shuffle(self):
        """
        Shuffles the cards in the deck.
        """
        import random
        return random.shuffle(self.available_cards)

    def deal_card(self):
        # self.available_cards.add(Card)
        # self.available_cards.remove(Card)
        self.dealt_cards.append(self.available_cards.pop())

    def get_size(self):
        return len[self.available_cards]

# c = Card()
# print(c.available_cards)

d = Deck()
d.shuffle()
for i in range(4):
    d.deal_card()
print(d.dealt_cards)
>>>[6 of Spades, Jack of Hearts, 4 of Spades, Queen of Spades]

在python中执行card和deck类

1 个答案: