Python - Blackjack

Question

def showCards(): 
    #SUM 
    sum = playerCards[0] + playerCards[1] 
    #Print cards 
    print "Player's Hand: " + str(playerCards) + " : " + "sum" 
    print "Dealer's Hand: " + str(compCards[0]) + " : " + "sum" 


    compCards = [Deal(),Deal()]  
    playerCards = [Deal(),Deal()] 

我如何將包含值的列表的整數元素加起來？下#SUM錯誤是可以組合列表像整數...

Answer 1

除了上面提到的註釋之外，sum實際上是Python中的一個內置函數，它的功能與您似乎正在尋找的一樣 - 所以不要覆蓋它並將其用作標識符名稱！請使用它。

此外，還有一個所有Python程序員都應遵循的樣式指南 - 這有助於進一步區分Python代碼與其他語言（如Perl或PHP）編寫的代碼中經常遇到的不可思議的污泥。 Python有更高的標準，你不符合它。 Style

所以這裏是重寫你的代碼以及一些猜測來填補缺失的部分。

from random import randint 

CARD_FACES = {1: "Ace", 2: "2", 3: "3", 4: "4", 5: "5", 6: "6", 7: "7", 8: "8", 
       9: "9", 10: "10", 11: "Jack", 12: "Queen", 13: "King"} 

def deal(): 
    """Deal a card - returns a value indicating a card with the Ace 
     represented by 1 and the Jack, Queen and King by 11, 12, 13 
     respectively. 
    """ 
    return randint(1, 13) 

def _get_hand_value(cards): 
    """Get the value of a hand based on the rules for Black Jack.""" 
    val = 0 
    for card in cards: 
     if 1 < card <= 10: 
      val += card # 2 thru 10 are worth their face values 
     elif card > 10: 
      val += 10 # Jack, Queen and King are worth 10 

    # Deal with the Ace if present. Worth 11 if total remains 21 or lower 
    # otherwise it's worth 1. 
    if 1 in cards and val + 11 <= 21: 
     return val + 11 
    elif 1 in cards: 
     return val + 1 
    else: 
     return val  

def show_hand(name, cards): 
    """Print a message showing the contents and value of a hand.""" 
    faces = [CARD_FACES[card] for card in cards] 
    val = _get_hand_value(cards) 

    if val == 21: 
     note = "BLACK JACK!" 
    else: 
     note = "" 

    print "%s's hand: %s, %s : %s %s" % (name, faces[0], faces[1], val, note) 


# Deal 2 cards to both the dealer and a player and show their hands 
for name in ("Dealer", "Player"): 
    cards = (deal(), deal()) 
    show_hand(name, cards) 

好吧，所以我被帶走了，實際上寫了整個事情。正如另一張海報寫的總和（list_of_values）是要走的路，但實際上對於黑傑克規則而言太簡單了。

Answer 2

在這裏找到手的價值，你可以做類似

compSum = sum(compCards) 

但它看起來像你可能試圖從第二你提到#SUM的部分內容，我不知道你想說什麼。這隻會在Deal（）返回整數時起作用。