加权成绩簿项目

Question

创建一个程序，计算学生在使用加权成绩簿的班级中的成绩。

加权系统使用百分比来确定每个分配类别的价值。对于此项目，请使用以下百分比：

• 项目成绩 = 30%（重量 = .30）
• 参与分数 = 20%（权重 = .20）
• 测验 = 10%（重量 = .10）
• 考试 = 40%（重量 = .40）

评分标准：

• A - 90-100
• B - 80-89
• C - 70-79
• D - 60-69
• F - 低于 60

注意：您将每个类别的平均值乘以其权重。最终成绩是计算权重的总和。

无法获取允许用户在所有 4 个类别中输入成绩的代码，因为它卡在选择的第一个类别上，并且循环一直在继续，而不会停止询问分数列表。我尝试了一个循环内的循环，但它也只在第一个选择的循环上继续。需要在所有 4 个类别中输入多个等级，这就是为什么我需要程序允许用户输入其他类别的等级，而不仅仅是首先选择的类别。

print ("Weighted Grade Calculator ")
name = input("Enter the Student's Name ")
number = input("Enter the Student's Number ")

x = input("Enter Assignment type: ")
c = 'y'

#Loop is in case user wants to calculate another students grade
while c=='y' or c=='Y':
  if x >= "quiz" or x >= "Quiz":
    input_string = input("Enter a list of scores separated by space ")
#Read ints separated by spaces
    lst = input_string.split()
    print("Calculating sum of element of input list")
#convert strings to ints and convert map to list
    lst = list(map(int, lst))
#Find total and avg
    total = sum(lst)
    avg_1 = total/len(lst)

  elif x >= "project" or x >= "Project":
    input_string = input("Enter a list of scores separated by space ")
    lst = input_string.split()
    print("Calculating sum of element of input list")
    lst = list(map(int, lst))
    total = sum(lst)
    avg_2 = total/len(lst)

  elif x >= "participation" or x >= "Participation":
    input_string = input("Enter a list of scores separated by space ")
    lst = input_string.split()
    lst = list(map(int, lst))
    total = sum(lst)
    avg_3 = total/len(lst)

  elif x >= "exam" or x >= "Exam":
    input_string = input("Enter a list of scores separated by space ")
    lst = input_string.split()
    print("Calculating sum of element of input list")
    lst = list(map(int, lst))
    total = sum(lst)
    avg_4 = total/len(lst)

  else:
    print("error, please try again")


    #Finds percentage earned from each category
    w_quiz = avg_1 * 0.1
    w_project = avg_2 * 0.3
    w_participation = avg_3 * 0.2
    w_exams = avg_4 * 0.4

    total = w_project + w_quiz + w_participation + w_exams 
    if(total >= 90 and total <=100):
        grade = 'A'
    elif(total >= 80 and total < 90):
        grade = 'B'
    elif(total >= 70 and total < 80):
        grade = 'C'
    elif(total >= 60 and total < 70):
        grade = 'D'
    elif(total >= 0 and total < 60):
        grade = 'F'
    print ("Student Name: " + str(name))
    print ("Student ID: " + str(number))
    print ("Total Weighted Score: " + str(total) + "%")
    print ("Letter Grade: " + grade)
    c = input("Would you like to calculate another grade? (Y or N): ")

Answer 1

不确定您要查找的确切内容，但此代码将根据您的输入进行输入，最后将计算所有总数的平均值及其各自的字母等级：

def calculate_letter(total):
    #function calculates letter grade
    if(total >= 90 and total <=100):
        grade = 'A'
    elif(total >= 80 and total < 90):
        grade = 'B'
    elif(total >= 70 and total < 80):
        grade = 'C'
    elif(total >= 60 and total < 70):
        grade = 'D'
    elif(total >= 0 and total < 60):
        grade = 'F'
    return grade

print ("Weighted Grade Calculator ")
name = input("Enter the Student's Name ")
number = input("Enter the Student's Number ")

totals = [] #initialize list to append scores to

while True:
    project = float(input("Enter the percentage for Projects (numbers only): "))
    participation = float(input("Enter the percentage for the Participation (numbers only): "))
    quizzes = float(input("Enter the percentage for Quizzes (numbers only): "))
    exams = float(input("Enter the percentage for the Final Exam (numbers only): "))

    w_project = project * 0.3
    w_participation = participation * 0.2
    w_quiz = quizzes * 0.1
    w_exams = exams * 0.4

    total = w_project + w_quiz + w_participation + w_exams

    grade = calculate_letter(total) #running the function defined above to evaluate letter grade from total
    print ("Total Weighted Score: " + str(total) + "%")
    print ("Letter Grade: " + grade)
    c = input("Would you like to calculate another grade? (Y or N): ").lower()

    totals.append(total)
    if c == 'y':
        #restarts the loop
        continue
    else:
        #exits the loop
        break

print(totals)
final_averaged_score = sum(totals) / len(totals) #finding the average of the list
final_grade = calculate_letter(final_averaged_score)
print ("Student Name: " + str(name))
print ("Student ID: " + str(number))
print ("Final Averaged score: " + str(final_averaged_score))
print ("Final letter grade: " + str(final_grade))