Question

student_names = []
test1_scores = []
test2_scores = []
test3_scores = []
total_scores = []

total_students = int(input("How many students are in you class? "))
counter = int(0)

while counter < total_students:
    student_name = str(input("What is the name of the student %s " % (counter+1)))

if student_name.isalpha() == True:
    student_names.append(student_name)
    test1_score = int(input("Please enter the score for test 1: "))
    if test1_score >= 0 and test1_score <= 20:
        test1_scores.append(test1_score)
        if student_name.isalpha() == True:
            student_names.append(student_name)
            test2_score = int(input("Please enter the score for test 2: "))
            if test2_score >= 0 and test2_score <= 25:
                test2_scores.append(test2_score)
                if student_name.isalpha() == True:
                    student_names.append(student_name)
                    test3_score = int(input("Please enter the score for test 3: "))
                    if test3_score >= 0 and test3_score <= 35:
                        test3_scores.append(test3_score)
                        counter += 1
                    total_scores.append(test1_score + test2_score + test3_score)
                    print ("The total score is %s " %(total_scores))
                    if total_students == counter:
                        average = total_scores / (3 * total_students)
                        print ("The average score is %s " %(average))

如果你看一下我的代码的底部，你可以看到我想把名为total_scores的数组除以测试分数x学生数，这样我就可以达到学生的平均分数。但我得到以下错误：

average = total_scores / (3 * total_students)
TypeError: unsupported operand type(s) for /: 'list' and 'int'

Answer 1

你应该遍历total_scores数组：

for score in total_scores:
    total += score
average = total/3*total_students

如何将我在数组上获得的值除以数字

1 个答案: