在Python中我想編碼，以便如果用戶鍵入我的列表不止一次的單詞，列表中的兩個字符串都將被取出

Question

我希望有一個列表，如[“King S”，“King H”，“Ace S”，“4 C”]然后當被要求用戶輸入什么卡丟棄時，如果用戶寫國王，兩者都國王將從名單中刪除。

我剛剛開始編碼，到目前為止我已經制作了代碼，這樣如果你輸入像“King H”這樣的特定卡片，它就會從列表中刪除。

dropCard = input()
dropCardCapital = dropCard.title()
while dropCardCapital not in pOneCards:
    print("You do not have the card " + dropCardCapital + ", please type a card that you have.")
    dropCard = input()
    dropCardCapital = dropCard.title()
if dropCardCapital in pOneCards:
        print("You dropped " + dropCardCapital)
DCCC = Counter([dropCardCapital])
pOneCards = set(pOneCardsCounter - DCCC)
pOneCardsCounter = Counter(pOneCards)

pOneCards是我希望從中取出卡片的列表。 它檢查輸入是否在pOneCards中，如果它正在使用計數器，它會從pOneCards列表中減去您的輸入。 我想要發生的是，如果你的輸入為王，列表中有兩個國王都會被減去。

我也沒關系，而不是使每張卡片King H / King S只有四個“King”並且不指定顏色或套裝。

Answer 1

我創建了函數remove_card() ，您可以在其中僅使用值或使用值AND顏色指定卡：

from collections import defaultdict

lst = ["King S", "King H", "Ace S", "4 C"]

def remove_card(card, lst):
    d = defaultdict(list)
    s = ' '.join(lst).split()
    for value, color in zip(s[::2], s[1::2]):
        d[value.lower()].append(color.lower())

    value, color = map(str.lower, card.split() if ' ' in card else (card, ''))

    dropped = []
    if value in d and color == '' and len(d[value]) > 1:
        # remove all cards of certain value only if color is unspecified and we have
        # more than one card of this value
        dropped = [(value + ' ' + v).title() for v in d[value]]
        del d[value]
    elif value in d and color != '' and color in d[value]:
        # color is specified and we have this card, remove it
        dropped = [(value + ' ' + color).title()]
        d[value].remove(color)

    # convert back defaultdict to list
    return [(k + ' ' + c).title() for k, v in d.items() for c in v], dropped

print('Initial list: ', lst)
lst, dropped = remove_card('ace', lst)  # no card is removed - we have only one Ace
print('After trying to remove "ace": ', lst)
print('We dropped: ', dropped)
lst, dropped = remove_card('ace s', lst)    # Ace S is removed - color is specified
print('After trying to remove "ace s": ', lst)
print('We dropped: ', dropped)
lst, dropped = remove_card('king', lst) # all 'kings' are removed, because we have more than one king
print('After trying to remove "king": ', lst)
print('We dropped: ', dropped)

打印：

Initial list:  ['King S', 'King H', 'Ace S', '4 C']
After trying to remove "ace":  ['King S', 'King H', 'Ace S', '4 C']
We dropped:  []
After trying to remove "ace s":  ['King S', 'King H', '4 C']
We dropped:  ['Ace S']
After trying to remove "king":  ['4 C']
We dropped:  ['King S', 'King H']