Question

说我有以下代码：

command = input("prompt :> ").strip().lower()
try:
    command = command.split()
# My input will be something like AB 1 2
    x = int(command[1])-1
    y = int(command[2])-1
    if command[0] == "ab":
       A_to_B(heights[x],distances[y])

高度是列表列表，距离也是如此：

heights = [['1','2'],['3','4'],['5','6']]
distances = [['a','b'],['c','d'],['e','f']]

所以我输入AC 1 2

x = 0
y = 1

然后我将从高处的0索引处获取列表，并从距离的1索引处列出列表。但是我继续遇到IndexError：列表超出范围。我怎样才能解决这个问题？提前谢谢！

为了简单起见，我在上面的代码中改变了很多名字。

这是我实际的A_to_B功能的样子

def tableau_to_foundation(tab, fnd):
    '''Determines if movements from the tableaus to the foundations are    valid.'''
    if len(tab) == 0:
        raise RuntimeError("Your tableau is empty.")
    src_card = tab[-1]
    dest_card = None
    valid_fnd_move(src_card, dest_card)
    fnd.append(tab.pop())

这里有valid_fnd_move（src_card，dest_card）

def valid_fnd_move(src_card, dest_card):
    '''Determines if the initial moves done to the foundation are valid. '''
    #First Check for when foundation is empty 
    if dest_card == None and src_card.rank() == 1:
        return 
    #Second Check for when foundation is empty 
    if dest_card == None and src_card.rank() != 1:
        raise RuntimeError("You need to place an ace into the foundation first.")
    #Checks if foundation is not empty 
    if not dest_card.suit() == src_card.suit() and \
       src_card.rank == dest_card.rank() + 1:
        raise RuntimeError("You can only place cards of the same suit together in a particular foundation")

转换为整数时输入超出范围

0 个答案: