Question

我在这段代码中做错了什么？我一直在为这个学校作业工作，每当我想我已经修好它时，就会出现这个错误：

 line 63, in averageClaculation
    totalClassScore = totalClassScore + classlist[i][0]
TypeError: unsupported operand type(s) for +: 'int' and 'tuple'

这是我的代码：

ACHIEVED = 50
MERIT = 70
EXCELLENCE = 90
testName = ""
classNameLimit = ""
classLimit = ""
classlist = []
highClasslist = []
lowClasslist = []


def grading(studentScore):
if studentScore < ACHIEVED: #If the mark is between 0 and 50 a Not Achived is given
    studentGrade = "Not Achieved"
elif studentScore >= ACHIEVED and studentScore < MERIT:  #If the mark is between 50 and 70 an Acheived is given
    studentGrade = "Achieved"
elif studentScore >= MERIT and studentScore < EXCELLENCE:  #If the mark is between 70 and 90 a merit is given
    studentGrade = "Merit"
elif studentScore >= EXCELLENCE and studentScore <=100:  #If the mark is between 90 and 100 an Excellence is given
    studentGrade = "Excellence"
return studentGrade

def enteringData():
testName = input("What is the name of the test? ")
name = input("What is your name? ").title()
teacher = input("Who is the teacher that conducted the test? ").title
className = input("What is the class name?: ")
classSize = int(input("How many students are in the class? "))
print()
for i in range(0, classSize):
    newStudent = ()
    studentsName = input("Enter student name {0}: ".format(i+1)).title()
    enterScore = True
    while enterScore == True:
        studentScore = int(input("    Enter the score {0} got for the test: ".format(studentsName)))
        if studentScore < 0 or studentScore > 100:
            print("Enter a number between 0 and 100\n")
            studentScore = int(input("    Enter the score {0} got for the test: ".format(studentsName)))
        else:
            break
    studentGrade = grading(studentScore)
    print("      The grade is " +str(studentGrade))
    classlist.append([newStudent])
    print()

def highestCalculation(classlist):
classlist.sort(reverse = True)
topThree = [classlist[0], classlist[1], classlist[2]]
return topThree

def averageClaculation(classlist):
totalClassScore = 0
for i in range(0, len(classlist)):
    totalClassScore = totalClassScore + classlist[i][0]
average = totalClassScore/len(classlist)

def main():
enteringData()
highestCalculation(classlist)
averageClaculation(classlist)
anotherClass = input("Would you like to enter results for another class? 'y' or 'n' ").upper()
if anotherClass == "Y":
    classList = []
    highClasslist = []
    lowClasslist = []

#Main Routine
main()

Answer 1

异常消息告诉您classlist[i][0]是一个元组，而不是代码部分所需的整数。要弄清楚您输入错误类型的原因，您需要确定classlist变量的定义位置以及它的值如何更新。

这发生在enteringData中，您将newstudent定义为空元组，然后执行classlist.append([newStudent])。所以classlist是空元组的单元素列表的列表。这几乎肯定不是你想做的事情。确切地说，您应该保存的数据并不清楚，但可能您想要执行classlist.append([student_score])之类的操作（在分数之后列表中可能包含其他值）。您还可以将额外的值放在核心之前，但是您需要更新其他函数以检查相应的索引。您也可以完全摆脱内部列表，只需将classlist作为整数列表（然后使用classlist.append(student_score)，并删除平均值中的[0]索引计算）。

如何调试错误＆＃34;不支持的操作数类型＆＃34;在我的学生评分脚本中？

1 个答案: