如何使测验显示学生的答案并按年级显示正确答案？

Question

所以我基本上是在尝试复制该图像，如图所示。我的问题是，每当我运行该程序时，它基本上会告诉我无法运行它。我不确定我的代码中是否存在错误。每当我运行它时，由于“ else：”部分的语法错误，都会出现错误。

def main():
examAnswers = ['A', 'C', 'A', 'A', 'D', 'B', 'C', 'A', 'C', 'B']
countCorrect = 0
countWrong = 0
studentAnswers = getStudentAnswers()

for i in range(10):
 if examAnswers[i] == studentAnswers[i]:
    print("Congratulations!", countCorrect + 1)
    else:
        print("Wrong!", countWrong + 1)


listOfAnswers = []
for qnum in range(10):
print("Enter answer to question ", qnum+1, ":", sep="", end="")
listofAnswers.append(input())
return listOfAnswers

main()

Answer 1

首先，我要说的是继续学习Python并通过教程进行改进。
我将在代码的注释中尽可能地解释我编写的重构代码，因此您可以了解这里发生的情况。如果您仍有疑问，请随时在评论中问我。

getStudentAnswers逻辑是在以下函数中定义的，我在从examAnswers变量开始的主要代码段中调用该函数。缩进在python中起着重要作用，因此未缩进的代码首先运行，并调用getStudentAnswers函数。

#Function to get the answers of students
def getStudentAnswers():

    listOfAnswers = []

    #Run a for loop 10 times
    for qNum in range(10):

        #Get the answer from the user
        print("Enter answer to question ", qNum + 1, ": ", sep="", end="")
        answer = input()

        #Append the answer to the list
        listOfAnswers.append(answer)

    #Return the final list of answers
    return listOfAnswers

#List of valid exam answers
examAnswers = ['A', 'C', 'A', 'A', 'D', 'B', 'C', 'A', 'C', 'B']

#Variable to hold the count of correct and wrong answers
countCorrect = 0
countWrong = 0

#Get all the answers from the students
studentAnswers = getStudentAnswers()

#Run a for loop 10 times
for i in range(10):

    #If exam answer matches student answer, print it and increment countCorrect
    if examAnswers[i] == studentAnswers[i]:
        countCorrect+=1
        print('Question',i+1,'is correct!')

    # If exam answer does not match student answer, print it and increment countWrong
    else:
        print('Question',i+1,'is WRONG!')
        countWrong+=1

#Calculate number of missedQuestions and grade and print it
missedQuestions = 10 - countCorrect
grade = 10*countCorrect

print('You missed',missedQuestions,'questions.')
print('You grade is:',grade)

运行代码后，您将获得如下所示的所需输出。

Enter answer to question 1: A
Enter answer to question 2: B
Enter answer to question 3: C
Enter answer to question 4: D
Enter answer to question 5: A
Enter answer to question 6: B
Enter answer to question 7: C
Enter answer to question 8: D
Enter answer to question 9: A
Enter answer to question 10: A
Question 1 is correct!
Question 2 is WRONG!
Question 3 is WRONG!
Question 4 is WRONG!
Question 5 is WRONG!
Question 6 is correct!
Question 7 is correct!
Question 8 is WRONG!
Question 9 is WRONG!
Question 10 is WRONG!
You missed 7 questions.
You grade is: 30