Question

我试图通过用户的输入来计算年度和月度成本。我在getTotalMonthly函数中收到错误。整个错误如下：

  File "C:/Users/Zeke/Desktop/pls.py", line 44, in getTotalMonthly
        totalMonthly=loanPayment + insurancePayment + gasPayment + oilPayment + tiresPayment + maintainancePayment
TypeError: unsupported operand type(s) for +: 'function' and 'function'

pls.py文件包含：

#Get Loan Payment
def getLoanPayment():
   loanPayment=0
   loanPayment=float(input('Enter the amount of the loan payment: '))
   return loanPayment
#Get the insurance payment
def getInsurancePayment():
    insurancePayment=0
    insurancePayment=float(input("Enter the amount of the insurance payment: "))
    return insurancePayment
#Get the gas payment
def getGasPayment():
    gasPayment=0
    gasPayment=float(input("Enter the amount of the gas payment: "))
    return gasPayment
#Get the oil payment
def getOilPayment():
    oilPayment=0
    oilPayment=float(input("Enter the amount of the oil payment: "))
    return oilPayment
#Get the tires payment
def getTiresPayment():
    tiresPayment=0
    tiresPayment=float(input("Enter the amount of the tires payment: "))
    return tiresPayment
#Get the maintainance payment
def getMaintainancePayment():
    maintainancePayment=0
    maintainancePayment=float(input("Enter the amount of the maitainance payment: "))
    return maintainancePayment
#add up all the payments to get a monthly total
def getTotalMonthly(loanPayment,insurancePayment,gasPayment,oilPayment,tiresPayment,maintainancePayment):
    totalMonthly=0
    totalMonthly=loanPayment + insurancePayment + gasPayment + oilPayment + tiresPayment + maintainancePayment
    return totalMonthly
#Calculate the annual costs
def getTotalAnnual(totalMonthly):
    totalAnnual=0
    totalAnnual=totalMonthly*12
    return totalAnnual
#define the main function
def main():
    loanPayment=0
    insurancePayment=0
    gasPayment=0
    oilPayment=0
    tiresPayment=0
    maintainancePayment=0
    loanPayment=getLoanPayment
    insurancePayment=getInsurancePayment
    gasPayment=getGasPayment
    oilPayment=getOilPayment
    tiresPayment=getTiresPayment
    maintainancePayment=getMaintainancePayment
    totalMonthly=getTotalMonthly(loanPayment,insurancePayment,gasPayment,oilPayment,tiresPayment,maintainancePayment)
    totalAnnual=getTotalAnnual(totalMonthly)
    print('the total monthly payment is',totalMonthly)
    print('the total annual payment is',totalAnnual)
main()

Answer 1

您需要使用括号调用所有函数。这不起作用：

insurancePayment=getInsurancePayment

你只是得到函数对象而不是它的结果。要修复它，您需要：

insurancePayment=getInsurancePayment()

您也不需要在Python中初始化变量，因此不需要这些：

loanPayment=0
insurancePayment=0
gasPayment=0
oilPayment=0
tiresPayment=0
maintainancePayment=0

您可以在需要时设置变量。

为+：'function'和'function'获取“TypeError：不支持的操作数类型”

1 个答案: