Python 如何让函数在条件不充分时执行

基本上，我有一个函数，可以从第二个列表中的一个列表中删除所有字符，但我的函数似乎只删除列表中的第一个值。感谢您提供的任何帮助

您将返回到回路内部，因此您只有一次通过外部回路：

import copy    
def remove_fully_correct(answer, guess):
        """(list,list) -> list 
        Return a list that removes the chars from the first list that are the same and in the same position in the second list
        >>>remove_fully_correct(['a','b','c','d'], ['d','b','a','d'])
        ['a','c']
        """
        res =  copy.copy(answer)
        for index in range(len(res)):
            for x, y in zip(res, guess):
                if res[index] == guess[index]:
                    res.remove(x)
                return res 

如果列表大小相同，则应使用enumerate：

import copy    
def remove_fully_correct(answer, guess):
        """(list,list) -> list 
        Return a list that removes the chars from the first list that are the same and in the same position in the second list
        >>>remove_fully_correct(['a','b','c','d'], ['d','b','a','d'])
        ['a','c']
        """
        res =  copy.copy(answer)
        for index in range(len(res)):
            for x, y in zip(res, guess):
                if res[index] == guess[index]:
                    res.remove(x)
        return res  # move outside

使用zip：

def remove_fully_correct(answer, guess):
        """(list,list) -> list
        Return a list that removes the chars from the first list that are the same and in the same position in the second list
        >>>remove_fully_correct(['a','b','c','d'], ['d','b','a','d'])
        ['a','c']
        """
        return [ele for index,ele in enumerate(answer) if ele != guess[index]]


In [6]: remove_fully_correct(['a','b','c','d'], ['d','b','a','d'])
Out[6]: ['a', 'c']

---

听起来你可能需要一个while循环。是的，我想是的，但我不知道应该把循环放在哪里：当x，y在zipres中时，猜猜：然后它说索引超出了范围

def remove_fully_correct(answer, guess):
        """(list,list) -> list
        Return a list that removes the chars from the first list that are the same and in the same position in the second list
        >>>remove_fully_correct(['a','b','c','d'], ['d','b','a','d'])
        ['a','c']
        """
        return [a for a,b in zip(answer,guess) if a != b]