[英]Novice python user need help passing data between functions
I am finishing an assignment for a class where a teacher can input the student ID numbers and the students grades. 我正在完成一个班级的作业,老师可以输入学生ID号和学生成绩。 The final grade will be calculated and returned next to the students number. 将计算最终成绩并将其返回到学生人数旁边。 I can calculate the final grade just fine, but I cannot append the grade to the list of student numbers. 我可以算出最终成绩,但不能将成绩附加到学生人数列表中。
def assignments():
assign1 = int(input("Assignment 1 grade: "))
if assign1 > 100:
print ("Please input a valid grade value.")
assign1 = int(input("Assignment 1 grade: "))
assign2 = int(input("Assignment 2 grade: "))
if assign2 > 100:
print ("Please input a valid grade value.")
assign2 = int(input("Assignment 2 grade: "))
assign3 = int(input("Assignment 3 grade: "))
if assign3 > 100:
print ("Please input a valid grade value.")
assign3 = int(input("Assignment 3 grade: "))
assign4 = int(input("Assignment 4 grade: "))
if assign4 > 100:
print ("Please input a valid grade value.")
assign4 = int(input("Assignment 4 grade: "))
assign5 = int(input("Assignment 5 grade: "))
if assign5 > 100:
print ("Please input a valid grade value.")
assign5 = int(input("Assignment 5 grade: "))
assign6 = int(input("Assignment 6 grade: "))
if assign6 > 100:
print ("Please input a valid grade value.")
assign6 = int(input("Assignment 6 grade: "))
assign7 = int(input("Assignment 7 grade: "))
if assign7 > 100:
print ("Please input a valid grade value.")
assign7 = int(input("Assignment 7 grade: "))
assign8 = int(input("Assignment 8 grade: "))
if assign8 > 100:
print ("Please input a valid grade value.")
assign8 = int(input("Assignment 8 grade: "))
assign9 = int(input("Assignment 9 grade: "))
if assign9 > 100:
print ("Please input a valid grade value.")
assign9 = int(input("Assignment 9 grade: "))
assign10 = int(input("Assignment 10 grade: "))
if assign10 > 100:
print ("Please input a valid grade value.")
assign10 = int(input("Assignment 10 grade: "))
assignGrade = assign1 + assign2 + assign3 + assign4 + assign5 + assign6 + assign7 + assign8 + assign9 + assign10
aGrade = assignGrade / 10
print("The final grade for all assignments is: ")
print(aGrade)
midterm = int(input("Midterm grade: "))
if midterm > 100:
print ("Please input a valid grade value.")
midterm = int(input("Midterm grade: "))
finalExam = int(input("Final Exam grade: "))
if finalExam > 100:
print ("Please input a valid grade value.")
finalExam = int(input("Final Exam grade: "))
testsGrade = midterm + finalExam
tGrade = testsGrade / 2
print("The final grade for all test is: ")
print(tGrade)
participation = int(input("Participation grade: "))
if participation > 100:
print ("Please input a valid grade value.")
participation = int(input("Participation grade: "))
partGrade = participation
print("The final grade for Participation is: ")
print(partGrade)
finalGrade = aGrade + tGrade + partGrade / 3
def students():
netIDList = []
maxLengthList = 6
while len(netIDList) < maxLengthList:
ID = input("Enter Student's Net ID: ")
netIDList.append(ID)
for s in netIDList:
print("Please input grades for student " + s)
assignments()
f = assignments().finalGrade
netIDList.append(": " + f)
print(netIDList)
def main():
students()
main()
Your problem is here: 您的问题在这里:
f = assignments().finalGrade
netIDList.append(": " + f)
You're accessing assignments
like it is an object rather than a function. 您正在访问assignments
就像它是对象而不是函数一样。 You want to have assignments
return a value to append. 您希望assignments
返回一个值以追加。
def assignments():
# do all your input and calculation here
finalGrade = aGrade + tGrade + partGrade / 3
return finalGrade
This way, the function will send this value back to the place where it was called from. 这样,函数会将这个值发送回调用它的地方。 Then, change 然后,改变
f = assignments().finalGrade
to 至
f = assignments()
EDIT: Your for loop should look basically like this: 编辑:您的for循环应该基本上看起来像这样:
for s in netIDList:
print("Please input grades for student " + s)
f = assignments()
netIDList.append(": " + f)
but this will result in a somewhat confusing list: 但这会导致列表有些混乱:
[student1_name, student2_name, student1_score, student2_score]
So I would use a dictionary: 所以我会用字典:
student_score_map = {}
for s in netIDList:
print("Please input grades for student " + s)
f = assignments()
student_score_map[s] = f
This way you can print all student names with their score like so: 这样,您可以打印所有学生姓名及其分数,如下所示:
for s in netIDList:
print(s + ' final score:' + student_score_map[s])
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