Python:如何在成绩计算器中添加“最终成绩”转换器

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1 回答
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提问于 2025-04-17 14:40

我大概知道该怎么做,但就是搞不明白。这个程序需要能够获取学生的名字和三次考试的分数,然后计算这三次分数的平均值(百分比)。接下来,你还需要把这个分数(百分比)转换成一个等级。

编辑:我该怎么去掉等级和“%”之间的空格呢?

  • 请按“Enter”键开始
  • 输入你的名字:Jordan Simpson
  • 第一次考试分数:67%
  • 第二次考试分数:78%
  • 第三次考试分数:89%
  • 最终等级:C+
  • Jordan Simpson的考试分数是:78.0 %
  • 你想重新开始这个程序吗?

评分标准:

评分标准


input ('Please press "Enter" to begin')

while True:
    import math

    studentName = str(input('Enter your Name: '))
    firstScore = int(float(input('First test score: ').replace('%', '')))
    secondScore = int(float(input('Second test score: ').replace('%', '')))
    thirdScore = int(float(input('Third test score: ').replace('%', '')))
    scoreAvg = (firstScore + secondScore + thirdScore) / 3

    def grade():
        if scoreAvg >= 93 and <= 100:
            return 'A'
        if scoreAvg <= 92.9 and >= 89:
            return 'A-'
        if scoreAvg <= 88.9 and >= 87:
            return 'B+'
        if scoreAvg <= 86.9 and >= 83:
            return 'B'
        if scoreAvg <= 82.9 and >= 79:
            return 'B-'
        if scoreAvg <= 78.9 and >= 77:
            return 'C+'
        if scoreAvg <= 76.9 and >= 73:
            return 'C'
        if scoreAvg <= 72.9 and >= 69:
            return 'C-'
        if scoreAvg <= 68.9 and >= 67:
            return 'D+'
        if scoreAvg <= 66.9 and >= 60:
            return 'D'
        return 'F'

    print(grade(scoreAvg))
    print(studentName, "test score is: ",scoreAvg,'%')


    endProgram = input ('Do you want to restart the program?')

    if endProgram in ('no', 'No', 'NO', 'false', 'False', 'FALSE'):
        break

1 个回答

5

我不太确定你的问题是什么,不过这里有一个更简洁的方法来获取字母成绩。

>>> scores = [93, 89, 87, 83, 79, 77, 73, 69, 67, 60, 0]
>>> grades = ['A', 'A-', 'B+', 'B', 'B-', 'C+', 'C', 'C-', 'D+', 'D', 'F']
>>> 
>>> def gradeFor(s):
...     grade_scores = zip(scores, grades)
...     for score, grade in grade_scores:
...        if s >= score:
...            return grade

>>> gradeFor(87)
B+
>>> gradeFor(89)
A-
>>> gradeFor(88)
B+
>>> gradeFor(67)
D+
>>> gradeFor(72)
C-
>>> gradeFor(40)
F

另外,你还可以这样做:

if endProgram.lower() in ('no', 'false'):

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