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我做了一个自定义类作为练习,一副纸牌。我有一个函数可以用random.shuffle()
函数来洗牌,但我似乎无法得到sort()
的工作,我知道我只能重建套牌,但如果我在排序之前从卡组中删除了卡牌,那就不起作用了它。 sort()
和sorted()
是否需要定义多个__lt__
?自定义类和排序问题()
import random
class Card:
""" Represents a card using a suit and a rank
suits are Clubs, Diamonds, Hearts, Spades represented by 0, 1, 2, 3
the ranks are 1 to 13 for Ace, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, Jack, Queen, King"""
def __init__(self, rank=2, suit=1):
self.rank = rank
self.suit = suit
suit_names = ['Clubs', 'Diamonds', 'Hearts', 'Spades']
rank_names = [None, 'Ace', '1', '2', '3', '4', '5', '6',
'7', '8', '9', '10', 'Jack', 'Queen', 'King']
def __str__(self):
return '%s of %s' %(Card.rank_names[self.rank],
Card.suit_names[self.suit])
def __lt__(self, other):
return self.suit, self.rank < other.suit, other.rank
class Deck:
""" Representing a deck of cards, containing one of each card """
def __init__(self):
self.new_deck()
def new_deck(self):
self.cards = []
for suit in range(4):
for rank in range(1, 14):
card = Card(rank, suit)
self.cards.append(card)
def __str__(self):
res = []
for card in self.cards:
res.append(str(card))
return '\n'.join(res)
def pop_card(self):
return self.cards.pop()
def add_card(self, card):
self.cards.append(card)
def shuffle(self):
random.shuffle(self.cards)
def sort(self):
self.cards.sort()
deck = Deck()
deck.shuffle()
deck.sort()
print(deck)
Python会打印出随机和deck.sort()
只是不工作
'__lt__'应该返回一个'bool',其中'self.suit,self.rank
作为一个侧面评论,你有'rank_names'列表中的15个元素:'None'为索引0和14个额外的。我想你应该删除'1'。 – Adirio