给定 4 个测试分数，在 Python 中计算最终字母成绩

Question

我的问题是在 0 到 100 分的范围内，根据 4 个参数（3 个测试价值 20% 和 1 个最终测试价值 40%）问我关于最终成绩的问题。该函数应该像打印 finalGrade(test1, test2, test3, final) 一样简单，它将根据分数输出一个字母等级。我不需要让用户输入任何内容，但是一旦我弄清楚了这个基本代码，我就会进行实验。

这是我目前的代码：

def grader(testOne, testTwo, testThree, finalExam):
    first = testOne * .20
    second = testTwo * .20
    third = testThree * .20
    fourth = finalExam *.40
    finalGrade = first + second + third + fourth
    return finalGrade

def ?? (??):
    if grade >= 90 and <= 100:
        return("You received an A")

    elif grade >= 80 and < 90:
        return("You received a B")

    elif grade >= 70 and < 80:
        return("You received a C")

    elif grade >= 60 and < 70:
        return("You received a D")

    else grade < 60:
        return("Sorry, you received an F")

print(testOne, testTwo, testThree, finalExam) #will replace with values

Answer 1

这个：

def ?? (??):
    if grade >= 90 and <= 100:
        return("You received an A")

    elif grade >= 80 and < 90:
        return("You received a B")

    elif grade >= 70 and < 80:
        return("You received a C")

    elif grade >= 60 and < 70:
        return("You received a D")

    else grade < 60:
        return("Sorry, you received an F")

应该是：

def gradeScores(FinalGrade):
    if FinalGrade >= 90 and FinalGrade <= 100:
        return("You received an A")

    elif FinalGrade >= 80 and FinalGrade < 90:
        return("You received a B")

    elif FinalGrade >= 70 and FinalGrade < 80:
        return("You received a C")

    elif FinalGrade >= 60 and FinalGrade < 70:
        return("You received a D")

    else:
        return("Sorry, you received an F")

还有：

print(testOne, testTwo, testThree, finalExam) #will replace with values

应该是：

print(gradeScores(grader(testOne, testTwo, testThree, finalExam))) #will replace with values

Answer 2

一些cmets-

A.你的第二个函数，你使用变量“grade”......这是一个很好的线索，“grade”应该是函数的参数。您会尝试根据函数的实际作用来命名函数……在这种情况下，将数字等级转换为字符串。

B.缺少脚本的“主要”部分（称为“打印”）。您不需要从这里实际访问函数的任何内部部分——您将值传入并使用结果。类似的东西

grade1 = 90
...
finalgrade = grader(grade1, grade2, grade3, grade4)
result = translategrade(finalgrade)
print(result)

是您在那里寻找的东西。您会注意到您没有全局访问任何私有变量 - 您将变量传入，在输出时使用返回值。

Answer 3

我知道这是一个旧线程，但想看看其他人如何处理这个问题并提供我自己的解决方案。

首先，如果你有一个成绩列表，首先找到平均分。

# GREADES = [85, 92, 96, 67, 73]
def numerical_grade(grades):
    return (sum(grades) / float(len(grades))) / 100

除以 10 得到 0 和 1 之间的浮点数。然后要得到字母等级，只需从等级列表中拉出一个索引，从 10 中减去等级。

# GRADE = 0.75
def letter_grade(grade):
    grades = 'ABCDFFFFFF'
    if grade > 0:
        return grades[10 - ceil(grade * 10)]
    else
        return 'F'

Answer 4

当真时：

print("What is your Score out of 80?")
score = input()

first = int(input("What was your mark:"))
Marks = int(input("Enter what the test was out of :"))
result = first / Marks * 100
print(first ,"/" ,Marks, '*' ,100 ,"=" , result, "%" )





if result > 90:
    print("You received an A*")

elif result > 70 and 90 :
    print("You received a A")

elif result > 60 and 70 :
    print("You received a B")

elif result > 50 and 60 :
    print("You received a C")

elif result < 50:   
    print("You received an D, and have Failed")


ans = no
input("Would you like to continue using the program?")