Python錯誤消息：builtins.IndexError：字符串索引超出范圍

Question

我正在創建一個游戲，程序將從包含5個多項選擇題的文件中讀取內容，用戶可以回答此問題並獲得分數。 但是，當我收到相同的錯誤消息時，我被卡住了：

builtins.IndexError: string index out of range

到目前為止，這是我的代碼：

def main():
    playagain = True
    while playagain:
        inFile = open('Questions.txt', 'r')
        condition = True
        while condition:
            for line in range(5):
                line = inFile.readline()
                print(line)

            anskey = inFile.readline()
            anskey = anskey[4]

            status = True
            while status:
                useranswer = str(input('Enter your answer?  '))
                useranswer = useranswer.upper()

                if useranswer == 'A' or useranswer == 'B' or useranswer \
                    == 'C' or useranswer == 'D':
                    status = False
                    if useranswer == anskey:
                        correct = correct + 1
                        print('Correct Answer!')
                    else:
                        print('Wrong Answer!')
                        correct = correct
                else:
                    print('Answer not valid!')


main()

Answer 1

由於您的代碼中只有一個索引操作，位於anskey[4] ，我的猜測是您的inFile的行上少於5個字符。