如何使用Python中的列表和函数计算类的等级
我需要编写一个程序,根据以下输入和过程计算班级的分数:如何使用Python中的列表和函数计算类的等级,python,arrays,function,python-3.x,computer-science,Python,Arrays,Function,Python 3.x,Computer Science,我需要编写一个程序,根据以下输入和过程计算班级的分数: 询问用户课程中的测试、作业、测验和实验室数量 询问用户是否有一个期末考试与上述考试有单独的权重,例如,一个课程有两个考试,每个考试权重为12.5%,一个期末考试权重为15% 对于编号大于0 a的每个类别。提示用户输入100%的加权百分比,所有类别的加权百分比总和应为100%!!!B获取类别的分数。C如果类别为实验室,则将所有分数相加。D否则,平均分数。E计算类别的加权平均数 使用每个类别的加权平均值,计算课程中的分数 询问用户是否要计算另一
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()
我不打算为您检查和重新组织代码,因为这是您真正需要解决的问题。相反,我将提供如何使用
while循环的示例
当为真和中断时
使用while True
可以连续运行下面的代码。使用条件,然后可以使用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')
当递增时
另一种方法是使用变量并在每次迭代后递增。一旦计数器达到某个数字并伪造条件,则循环将在迭代完成后退出
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)
旁注检查字符串的使用输入时,有几种方法。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':
为什么要将函数嵌入while循环中?代码的复杂性让它很难阅读。请考虑重新组织代码,这样主循环只包含少量的行,可以调用其他函数。@ OZ123,我不知道如何合并while循环。我的思考过程是,如果我将while循环包装在所有代码(包括函数)周围,那么只要条件为真,其中的所有内容都将运行。对于你的第二个评论,我很抱歉,但我不知道怎么做。我是编程新手。对于初学者,您需要将函数定义移到while
循环之外。首先定义函数,然后调用它们。请看一看,;因此,尝试教授这些材料并不实际(或合适)。一旦你完成了这一点,看看其他人编写的代码,看看用Python组织事情的常用方法也会很有帮助。
if user_input.lower() == 'q':
if user_input == 'q' or user_input == 'Q':
if user_input in 'qQ':