如何使用 Python 中的列表和函数计算 class 的成绩
How to calculate a grade for a class using lists and functions in Python
我需要编写一个程序，根据以下输入和过程计算 class 的成绩：
询问用户他们课程中的测试、作业、测验和实验的数量。
询问用户是否有与上述测试不同的最终权重，例如一门课程有 2 个测试，每个测试占 12.5%，最后一个占 15%。
对于每个类别都有一个数字 > 0 a。提示用户输入加权百分比，满分 100%，所有类别的总和应为 100%！！！ b.获取类别的分数。 C。如果类别是实验室，则对所有分数求和。 d.否则，平均分数。 e.计算类别的加权平均值。
使用每个类别的加权平均值，计算课程的成绩。
询问用户 he/she 是否要计算另一个 class 的成绩。
如果用户回答是，则返回步骤1。 7. 否则，结束程序。
我几乎完成了该程序并拥有我的所有功能，但我很难将它们组合在一起并正常工作。我的第一个问题是合并步骤 5/6 并让 while 循环与其余代码一起工作。此外，我很难将实验室分数相加并将该值合并到加权平均值中。
非常感谢任何帮助！
这是我的代码：
def main():
inputList = get_user_input()
average = get_scores(inputList)
weightedAvgs = get_weightedavg(average, inputList)
results = get_class_grade(weightedAvgs)
ans = "yes"
while(ans == "yes"):
def get_user_input():
inputList = [] # initializes a list
# Gets how many scores for each category the user would like to enter and adds value to a list
tests = int(input("How many tests scores would you like to enter? "))
inputList.append(tests)
assignments = int(input("How many assignment scores would you like to enter: "))
inputList.append(assignments)
quizzes = int(input("How many quiz scores would you like to enter? "))
inputList.append(quizzes)
labs = int(input("How many lab scores would you like to enter? "))
inputList.append(labs)
final = int(input("How many final scores would you like to enter? "))
inputList.append(final)
# Gets the weight of each category if there are any scores to enter and adds the value to a list
if tests > 0:
testWeight = float(input("Enter the weight of tests: "))
inputList.append(testWeight)
else:
testWeight = 0
if assignments > 0:
assignmentWeight = float(input("Enter the weight of assignments: "))
inputList.append(assignmentWeight)
else:
assignmentWeight = 0
if quizzes > 0:
quizWeight = float(input("Enter the weight of quizzes: "))
inputList.append(assignmentWeight)
else:
quizWeight = 0
if labs > 0:
labWeight = float(input("Enter the weight of labs: "))
inputList.append(labWeight)
else:
labWeight = 0
if final > 0:
finalWeight = float(input("Enter the weight of the final: "))
inputList.append(finalWeight)
else:
finalWeight = 0
return(inputList)
def get_scores(inputList):
# Gets scores for each category & calculates avg for each category
average = []
testScoreList = []
tests2 = inputList[0]
for x in range(tests2):
testScore = float(input("Enter your test score: "))
testScoreList.append(testScore)
if tests2 == 0:
testAvg = 0
else:
testAvg = sum(testScoreList) / inputList[0]
average.append(testAvg)
assignmentScoreList = []
assignments2 = inputList[1]
for x in range(assignments2):
assignmentScore = float(input("Enter your assignment score: "))
assignmentScoreList.append(assignmentScore)
if assignments2 == 0:
assignmentAvg = 0
else:
assignmentAvg = sum(assignmentScoreList) / inputList[1]
average.append(assignmentAvg)
quizScoreList = []
quizzes2 = inputList[2]
for x in range(quizzes2):
quizScore = float(input("Enter your quiz score: "))
quizScoreList.append(quizScore)
if quizzes2 == 0:
quizAvg = 0
else:
quizAvg = sum(quizScoreList) / inputList [2]
average.append(quizAvg)
labScoreList = []
labs2 = inputList[3]
for x in range(labs2):
labScore = float(input("Enter your lab score: "))
labScoreList.append(labScore)
if labs2 == 0:
labSum = 0
else:
labSum = sum(labScoreList)
average.append(labSum)
finalScoreList = []
final2 = inputList[4]
for x in range(final2):
finalScore = float(input("Enter the score for your final: "))
finalScoreList.append(finalScore)
if final2 == 0:
finalAvg = 0
else:
finalAvg = sum(finalScoreList) / inputList[4]
average.append(finalAvg)
def get_weighted_avg(average, inputList):
weightedAvgs = []
weightedTestAvg = average[0] * inputList[5]
weightedAvgs.append(weightedTestAvg)
print("Your weighted average is " + str(weightedTestAvg))
weightedAssignmentAvg = average[1] * inputList[6]
weightedAvgs.append(weightedAssignmentAvg)
print("Your weighted average is " + str(weightedAssignmentAvg))
weightedQuizAvg = average[2] * inputList[7]
weightedAvgs.append(weightedQuizAvg)
print("Your weighted average is " + str(weightedAssignmentAvg))
weightedLabSum = average[3] * inputList[8]
weightedAvgs.append(weightedLabSum)
print("The sum of your lab scores are " + str(weightedLabAvg))
weightedFinalAvg = average[4] * inputList[9]
weightedAvgs.append(weightedFinalAvg)
print("Your weighted average is " + str(weightedFinalAvg))
return(weightedAvgs)
def get_class_grade(weightedAvgs):
grade = weightedAvgs[0] + weightedAvgs[1] + weightedAvgs[2] + weightedAvgs[3] + weightedAvgs[4]
if grade >= 90:
finalGrade = "A"
elif grade >= 80:
finalGrade = "B"
elif grade >= 70:
finalGrade = "C"
elif grade >= 60:
finalGrade = "D"
else:
finalGrade = "F"
print("Your grade is " + finalGrade)
ans = (input("Would you like to calculate a grade for another class? "))
while(ans != "yes" and ans != "no"):
print("Please type yes or no")
ans = (input("Would you like to calculate a grade for another class? "))
if ans == "no":
exit()
main()
我不会为您检查和重新组织您的代码，因为这是您真正需要完成的事情。相反，我将提供有关如何使用 while-loops.
的示例
while True and break
使用while True你可以连续运行后面的代码。使用一个条件，然后您可以使用 break 在该点退出循环
while True:
# Will request a number and print it back to the user
# If a valid entry is entered print and exit while loop
# Otherwise while loop will continue
user_input = input('Please enter a number: ')
if user_input.isdigit(): # Checks if the input string is a number
print('You entered {0}'.format(user_input))
break # exit loop
else:
print('That is not a number')
同时递增
另一种方法是使用变量并在每次迭代后递增它。一旦计数器达到一定数量并伪造条件，则在迭代完成后循环退出。
counter = 0
input_list = []
print('Please enter a valid non-number 5 times')
while counter < 5: # Exits when condition is false | counter >= 5
user_input = input('Please enter a non-number: ')
if not user_input.isdigit(): # Checks if the input string is a number
input_list.append(user_input) # Add input to list
counter += 1 # Increments counter by 1
else:
print("That's a number")
print(input_list)
while with bool value and using functions
您可以连续使用在 while 循环外定义的函数，直到条件为假。在此示例中，每次都会使用 double 函数，直到用户输入 'q' 或 'Q'。该变量是 made True，它使条件 False 并结束循环。
def double(value):
return value * 2
print('Find the result of double a value. Enter q to Quit')
exit_loop = False
while not exit_loop: # Same effect as while not False == while True
user_input = input('Please enter a value: ')
if user_input.lower() == 'q':
exit_loop = True # exit loop
elif user_input.isdigit(): # Checks if the input string is a number
num = int(user_input)
print(double(num))
else:
print(double(user_input))
旁注 在检查字符串的使用输入时，有几种方法可以做到这一点。这些例子都是有效的，不限于 -
if user_input.lower() == 'q':
if user_input == 'q' or user_input == 'Q':
if user_input in 'qQ':
我需要编写一个程序，根据以下输入和过程计算 class 的成绩：
询问用户他们课程中的测试、作业、测验和实验的数量。
询问用户是否有与上述测试不同的最终权重，例如一门课程有 2 个测试，每个测试占 12.5%，最后一个占 15%。
对于每个类别都有一个数字 > 0 a。提示用户输入加权百分比，满分 100%，所有类别的总和应为 100%！！！ b.获取类别的分数。 C。如果类别是实验室，则对所有分数求和。 d.否则，平均分数。 e.计算类别的加权平均值。
使用每个类别的加权平均值，计算课程的成绩。
询问用户 he/she 是否要计算另一个 class 的成绩。
如果用户回答是，则返回步骤1。 7. 否则，结束程序。
我几乎完成了该程序并拥有我的所有功能，但我很难将它们组合在一起并正常工作。我的第一个问题是合并步骤 5/6 并让 while 循环与其余代码一起工作。此外，我很难将实验室分数相加并将该值合并到加权平均值中。
非常感谢任何帮助！
这是我的代码：
def main():
inputList = get_user_input()
average = get_scores(inputList)
weightedAvgs = get_weightedavg(average, inputList)
results = get_class_grade(weightedAvgs)
ans = "yes"
while(ans == "yes"):
def get_user_input():
inputList = [] # initializes a list
# Gets how many scores for each category the user would like to enter and adds value to a list
tests = int(input("How many tests scores would you like to enter? "))
inputList.append(tests)
assignments = int(input("How many assignment scores would you like to enter: "))
inputList.append(assignments)
quizzes = int(input("How many quiz scores would you like to enter? "))
inputList.append(quizzes)
labs = int(input("How many lab scores would you like to enter? "))
inputList.append(labs)
final = int(input("How many final scores would you like to enter? "))
inputList.append(final)
# Gets the weight of each category if there are any scores to enter and adds the value to a list
if tests > 0:
testWeight = float(input("Enter the weight of tests: "))
inputList.append(testWeight)
else:
testWeight = 0
if assignments > 0:
assignmentWeight = float(input("Enter the weight of assignments: "))
inputList.append(assignmentWeight)
else:
assignmentWeight = 0
if quizzes > 0:
quizWeight = float(input("Enter the weight of quizzes: "))
inputList.append(assignmentWeight)
else:
quizWeight = 0
if labs > 0:
labWeight = float(input("Enter the weight of labs: "))
inputList.append(labWeight)
else:
labWeight = 0
if final > 0:
finalWeight = float(input("Enter the weight of the final: "))
inputList.append(finalWeight)
else:
finalWeight = 0
return(inputList)
def get_scores(inputList):
# Gets scores for each category & calculates avg for each category
average = []
testScoreList = []
tests2 = inputList[0]
for x in range(tests2):
testScore = float(input("Enter your test score: "))
testScoreList.append(testScore)
if tests2 == 0:
testAvg = 0
else:
testAvg = sum(testScoreList) / inputList[0]
average.append(testAvg)
assignmentScoreList = []
assignments2 = inputList[1]
for x in range(assignments2):
assignmentScore = float(input("Enter your assignment score: "))
assignmentScoreList.append(assignmentScore)
if assignments2 == 0:
assignmentAvg = 0
else:
assignmentAvg = sum(assignmentScoreList) / inputList[1]
average.append(assignmentAvg)
quizScoreList = []
quizzes2 = inputList[2]
for x in range(quizzes2):
quizScore = float(input("Enter your quiz score: "))
quizScoreList.append(quizScore)
if quizzes2 == 0:
quizAvg = 0
else:
quizAvg = sum(quizScoreList) / inputList [2]
average.append(quizAvg)
labScoreList = []
labs2 = inputList[3]
for x in range(labs2):
labScore = float(input("Enter your lab score: "))
labScoreList.append(labScore)
if labs2 == 0:
labSum = 0
else:
labSum = sum(labScoreList)
average.append(labSum)
finalScoreList = []
final2 = inputList[4]
for x in range(final2):
finalScore = float(input("Enter the score for your final: "))
finalScoreList.append(finalScore)
if final2 == 0:
finalAvg = 0
else:
finalAvg = sum(finalScoreList) / inputList[4]
average.append(finalAvg)
def get_weighted_avg(average, inputList):
weightedAvgs = []
weightedTestAvg = average[0] * inputList[5]
weightedAvgs.append(weightedTestAvg)
print("Your weighted average is " + str(weightedTestAvg))
weightedAssignmentAvg = average[1] * inputList[6]
weightedAvgs.append(weightedAssignmentAvg)
print("Your weighted average is " + str(weightedAssignmentAvg))
weightedQuizAvg = average[2] * inputList[7]
weightedAvgs.append(weightedQuizAvg)
print("Your weighted average is " + str(weightedAssignmentAvg))
weightedLabSum = average[3] * inputList[8]
weightedAvgs.append(weightedLabSum)
print("The sum of your lab scores are " + str(weightedLabAvg))
weightedFinalAvg = average[4] * inputList[9]
weightedAvgs.append(weightedFinalAvg)
print("Your weighted average is " + str(weightedFinalAvg))
return(weightedAvgs)
def get_class_grade(weightedAvgs):
grade = weightedAvgs[0] + weightedAvgs[1] + weightedAvgs[2] + weightedAvgs[3] + weightedAvgs[4]
if grade >= 90:
finalGrade = "A"
elif grade >= 80:
finalGrade = "B"
elif grade >= 70:
finalGrade = "C"
elif grade >= 60:
finalGrade = "D"
else:
finalGrade = "F"
print("Your grade is " + finalGrade)
ans = (input("Would you like to calculate a grade for another class? "))
while(ans != "yes" and ans != "no"):
print("Please type yes or no")
ans = (input("Would you like to calculate a grade for another class? "))
if ans == "no":
exit()
main()
我不会为您检查和重新组织您的代码，因为这是您真正需要完成的事情。相反，我将提供有关如何使用 while-loops.
while True and break
使用while True你可以连续运行后面的代码。使用一个条件，然后您可以使用 break 在该点退出循环
while True:
# Will request a number and print it back to the user
# If a valid entry is entered print and exit while loop
# Otherwise while loop will continue
user_input = input('Please enter a number: ')
if user_input.isdigit(): # Checks if the input string is a number
print('You entered {0}'.format(user_input))
break # exit loop
else:
print('That is not a number')
同时递增
另一种方法是使用变量并在每次迭代后递增它。一旦计数器达到一定数量并伪造条件，则在迭代完成后循环退出。
counter = 0
input_list = []
print('Please enter a valid non-number 5 times')
while counter < 5: # Exits when condition is false | counter >= 5
user_input = input('Please enter a non-number: ')
if not user_input.isdigit(): # Checks if the input string is a number
input_list.append(user_input) # Add input to list
counter += 1 # Increments counter by 1
else:
print("That's a number")
print(input_list)
while with bool value and using functions
您可以连续使用在 while 循环外定义的函数，直到条件为假。在此示例中，每次都会使用 double 函数，直到用户输入 'q' 或 'Q'。该变量是 made True，它使条件 False 并结束循环。
def double(value):
return value * 2
print('Find the result of double a value. Enter q to Quit')
exit_loop = False
while not exit_loop: # Same effect as while not False == while True
user_input = input('Please enter a value: ')
if user_input.lower() == 'q':
exit_loop = True # exit loop
elif user_input.isdigit(): # Checks if the input string is a number
num = int(user_input)
print(double(num))
else:
print(double(user_input))
旁注 在检查字符串的使用输入时，有几种方法可以做到这一点。这些例子都是有效的，不限于 -
if user_input.lower() == 'q':
if user_input == 'q' or user_input == 'Q':
if user_input in 'qQ':