Python;计算每个学生的三个成绩的平均值

Question

我必须编写代码来计算每个学生的三个平均成绩，并根据得到的平均成绩显示一条消息。

程序需要能够处理任意数量的学生；但每个学生只有 3 个等级。我必须使用一种方法来计算每个学生的平均分数，并根据平均值确定适当的消息。

这是我到目前为止的代码，我被卡住了：

def main():
    more = 'y'

    while more == 'y' and more == 'Y':
        numScore = int(input('How many test score per student: '))

    for numtest in range(numScore):
        print ("The score for test")
        score = int(input(': '))

        total += score

    total = 0

    print ("Student number", students + 1)
    print ('-----------------------------------------')

    avg = getAvg(numScore)

    if avg > 90:
        print ("You're doing excellent work")
    elif avg > 85 and avg <= 90:
        print("You are doing pretty good work")
    elif avg > 70 and avg <= 85:
        print ("You better get busy")
    else:
        print ("You need to get some help")

def getAvg (numScore):
    avg = total / numScore

    print ("The average for student number", student + 1, \ "is:", avg)

 more = input('Do you want to enter another student test score and get the average score of the student (Enter y for yes and n for no): ')

main()

Answer 1

您的脚本中的大部分元素都是正确的，但您需要更多地考虑所有内容的顺序。

确保将所需的任何参数传递给函数。您的getAvg 函数需要三个参数来计算平均值并将其与学号一起显示。你也忘了回average。

在计算avg 范围时，如果您首先测试>90，则根据定义，下一个elif avg > 85 将小于或等于90，因此只需随后测试>85 .

以下内容经过重新安排：

def getAvg(student, total, numScore):
    average = total / numScore
    print ("The average for student number", student, "is:", average)
    return average

def main():
    student = 0
    more = 'y'

    while more == 'y':
        student += 1
        total = 0

        numScore = int(input('How many test scores per student: '))

        for test_number in range(numScore):
            print ("The score for test", test_number+1)
            score = int(input(': '))
            total += score

        print ("Student number", student)
        print ('-----------------------------------------')

        avg = getAvg(student, total, numScore)

        if avg > 90:
            print ("You're doing excellent work")
        elif avg > 85:
            print("You are doing pretty good work")
        elif avg > 70:
            print ("You better get busy")
        else:
            print ("You need to get some help")

        print()
        print('Do you want to enter another student test score and get the average score of the student?')
        more = input('Enter y for yes, and n for no: ').lower()

main()

为您提供以下类型的输出：

How many test scores per student: 3
The score for test 1
: 93
The score for test 2
: 89
The score for test 3
: 73
Student number 1
-----------------------------------------
The average for student number 1 is: 85.0
You better get busy

Do you want to enter another student test score and get the average score of the student?
Enter y for yes, and n for no: n