我不明白為什么這會給我一個錯誤

Question

我正在嘗試創建程序的一部分，該程序最終將模擬二十一點。

def getShuffleDeck():
    newDeck = ['A','2','3','4','5','6','7','8','9','T','J','Q','K'] * 4
    shuffleDeck = []
    print(newDeck)
    deckPreshuffle = list(newDeck)
    shuffleDeck = random.shuffle(newDeck)
    return shuffleDeck


def dealCard(playingDeck):
    playDeck = []
    player1CardDealt = playDeck[0]
    print("Dealer gave you: " + playDeck[0])
    player2CardDealt = playDeck[1]
    print("Dealer is dealt a card.")

    playingDeck.remove(playerCardDealt)
    playingDeck.remove(dealerCardDealt)
    return (playerCardDealt, dealerCardDealt, playDeck)

# def cardValues(cardDealt):
dealCards = []
dealCards = (getShuffleDeck())
print(dealCards)


# print(dealtCard)

player1Card = dealCards
player2Card = dealCards[1]
currentDeck = dealCards[2]
print(player1Card)
print(player2Card)

該程序給我一個nonetype錯誤。 有人可以告訴我我在做什么錯嗎？

Answer 1

playDeck = []
player1CardDealt = playDeck[0]

總是會給您一個錯誤，因為您嘗試訪問一個空列表的第一個元素...

另外

def getShuffleDeck():
    newDeck = ['A','2','3','4','5','6','7','8','9','T','J','Q','K'] * 4
    shuffleDeck = []
    print(newDeck)
    deckPreshuffle = list(newDeck)
    shuffleDeck = random.shuffle(newDeck)
    return shuffleDeck

總是會返回None ...，因為random.shuffle洗牌，並且不會返回值（至少可以肯定）