Question

我已经概述了代码中我遇到问题的地方。我是一个python newb，需要一些帮助。我想做的是单手牌，然后按照套装和排名选择排序。我希望为每张卡分配自己的值，然后比较卡片，最终完成排序。目前，当我运行代码时，我收到一个错误，指出我的字符串索引超出范围。我假设这是因为我没有正确定义card1 card2指数，但我不知道如何解决它们。提前谢谢！
编辑：对于card1和card2我希望能够根据他们的等级对它们进行比较，如果我得到一个正数，我知道card1大于card2，如果为负，我知道card1小于card2。然后我可以在find_largest中使用它来比较13张卡片。

import random

def shuffle_deck():
    result = []
    for suit in ['H', 'C', 'D', 'S']:
        for value in ['A', '2', '3', '4', '5', '6', '7', '8', '9', 'T', 'J', 'Q', 'K']:
            result += [value + suit];
    random.shuffle(result)
    return result

def deal_hand(n, deck):
    hand = []
    for i in range(n):
        card = deck.pop()
        hand += [card]
    return hand

# This is where the trouble I'm having begins as I'm not sure what cards to compare
def compare(card1,card2):
    value = 'A23456789TJQK'
    suit = 'HCDS'
    card1 = value.find(card1[0] [0]) + ((suit.find(card1[0][1]))*20)
    card2 = value.find(card2[1] [0]) + ((suit.find(card2[1][1]))*20)
    return(card1 - card2)

def find_largest(hand, n):
    largestIdx = 0
    for i in range(1, n):
# I am also not certain what should be compared in this part. I know it should be the 
#current hand compared to the position of the largest card currently.
        if compare(hand [i], hand[largestIdx]) > 0:
            largestIdx = i
    return largestIdx

def selection_sort(hand):
    for idx in range(len(hand)-1, 0, -1):
        largestIdx = find_largest(hand, idx +1)
        hand[idx], hand[largestIdx] = hand[largestIdx], hand[idx]
    print(hand)

编辑：

selection_sort(deal_hand(13, shuffle_deck()))
Traceback (most recent call last):
  File "C:\Program Files\Wing IDE 101 5.0\src\debug\tserver\_sandbox.py", line 1, in <module>
    # Used internally for debug sandbox under external interpreter
  File "C:\Program Files\Wing IDE 101 5.0\src\debug\tserver\_sandbox.py", line 92, in selection_sort
  File "C:\Program Files\Wing IDE 101 5.0\src\debug\tserver\_sandbox.py", line 79, in find_largest
  File "C:\Program Files\Wing IDE 101 5.0\src\debug\tserver\_sandbox.py", line 64, in compare
builtins.IndexError: string index out of range

Answer 1

如果我正确关注您的代码，变量card1和card2应包含一些字符串，如'AC'或'5D'。看起来你想分别看一下套装和号码（value.find(card1[0] [0]) + ((suit.find(card1[0][1]))*20)）。你这里只需要一个索引，而不是两个。看看下面的例子：

>>> a = 'AC'
>>> a[0]
'A'
>>> a[1]
'C'
>>> a[0][0]
'A'
>>> a[0][1]
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
IndexError: string index out of range

字符串'C'只有一个元素，因此当您执行card1[0][1]时会出现索引错误。您想用

替换该代码

card1 = value.find(card1[0]) + ((suit.find(card1[1]))*20)
card2 = value.find(card2[0]) + ((suit.find(card2[1]))*20)

那应该摆脱你的IndexError。

我试图按照排名和套装对单手牌进行排序，使用我的代码在Python 3中没有内置

1 个答案: