阵列无法正确排列 - python

Question

好吧，我又回来了。我上周询问了我在数组中遇到的一些问题，并解决了问题，但我遇到了类似的问题。我朋友的代码看起来完全像我一样，就像没有开玩笑的格式几乎相同，但他的作品和我的作品却没有。除了显示正确的答案，然后用户输入的内容时，一切都起作用。如果这似乎是一种奇怪的方法，我知道这是我应该如何做的，不要因为它而badge to，哈哈。我会收到索引错误，但我不确定为什么。它必须像上周一样简单而类似的东西。

def main():

    # Initializes answer sheet
    questions_answers = ['B', 'D', 'A', 'A', 'C', "A", 'B', 'A', 'C', 'D', 'B', 'C', 'D', 'A', 'D', 'C', 'C', 'B', 'D', 'A', ]
    # Initializes the array for the questions the user got wrong
    questions_wrong = []
    # Initializes the amount correct variable
    amount_correct = 0
    # Initializes the amount incorrect variable
    amount_incorrect = 0

    # Starts a for loop to get users answers
    for question_number in range(20):
        # Asks user to input their answer
        questions_input = input('Enter Your answer for Question #' + str(question_number + 1) + ': ')
        # Sets inputs to uppercase
        questions_input = questions_input.upper()

        # If statement to determine if input is right
        if questions_input == questions_answers[question_number]:
            amount_correct += 1
        # Else statement to add 1 to incorrect count and the answer to the list of questions wrong
        else:
            questions_wrong.append((question_number + 1, questions_input))
            amount_incorrect += 1

    # Prints blank line
    print()

    # If statement to determine pass
    if amount_correct >= 15:
        # Prints thta the user passed
        print('**YOU PASSED**')
    # Else statement to determine fail
    else:
        # Prints the user failed
        print('**YOU FAILED**')

    # Prints the number correct
    print('Number correct: ', amount_correct)

    # Pirnts the number incorrect
    print('Number incorrect:', amount_incorrect)
    # Prints 3 blank lines and headers for comparing wrong answers
    print()
    print()
    print()
    print('You got the following questions wrong:')
    print()
    print('Question     Correct     Your Answer')
    print('--------     -------     -----------')
    # Runs a for loop to display what the user got wrong and what the right answer was
    for question_number in range(20):
        if questions_answers[question_number] != questions_input[question_number]:
            print('  ', question_number + 1, '         ', questions_answers[question_number], '           ', questions_input[question_number])

# End of main procedure
main()

Answer 1

基本上，您将问题_input存储为一个不断变化的字符串，因此您最后试图在字符串“ A”中找到第20个字符。我创建了一个新数组，其中存储用户答案，然后在最后使用这些数组。

# Initializes answer sheet
questions_answers = ['B', 'D', 'A', 'A', 'C', "A", 'B', 'A', 'C', 'D', 'B', 'C', 'D', 'A', 'D', 'C', 'C', 'B', 'D', 'A', ]
# Initializes the array to store the answers the User enters 
user_answers = []
# Initializes the array for the questions the user got wrong
questions_wrong = []
# Initializes the amount correct variable
amount_correct = 0
# Initializes the amount incorrect variable
amount_incorrect = 0

# Starts a for loop to get users answers
for question_number in range(20):
    # Asks user to input their answer
    questions_input = input('Enter Your answer for Question #' + str(question_number + 1) + ': ')
    # Sets inputs to uppercase
    questions_input = questions_input.upper()
    user_answers.append(questions_input)

    # If statement to determine if input is right
    if questions_input == questions_answers[question_number]:
        amount_correct += 1
    # Else statement to add 1 to incorrect count and the answer to the list of questions wrong
    else:
        questions_wrong.append((question_number + 1, questions_input))
        amount_incorrect += 1

# Prints blank line
print()

# If statement to determine pass
if amount_correct >= 15:
    # Prints thta the user passed
    print('**YOU PASSED**')
# Else statement to determine fail
else:
    # Prints the user failed
    print('**YOU FAILED**')

# Prints the number correct
print('Number correct: ', amount_correct)

# Pirnts the number incorrect
print('Number incorrect:', amount_incorrect)
# Prints 3 blank lines and headers for comparing wrong answers
print()
print()
print()
print('You got the following questions wrong:')
print()
print('Question     Correct     Your Answer')
print('--------     -------     -----------')
# Runs a for loop to display what the user got wrong and what the right answer was
for question_number in range(20):
    if questions_answers[question_number] != user_answers[question_number]:
        print('  ', question_number + 1, '         ', questions_answers[question_number], '           ', user_answers[question_number])