Question

我正在尝试编写一个函数（在Python 2.7中），该函数使用未结余额和年利率，然后使用二分搜索 to solve problem #3将最小月付款返回到最接近的分数。我试图通过在main函数中编写一个函数来遵循DRY原则，该函数应该在一年后返回一个带有余额的列表和月数（如果余额达到零或更少，循环应该会中断），这需要计算两次在我的主要功能。当我尝试在继续之前测试这个初始闭包时，我在分配monthlyPayment的行上遇到语法错误。我做错了什么？

# Problem Set 1("C")
# Time Spent: xx hours

def payInOne_BisectionSearch (balance,annualRate):
    #initialize variables
    initialBalance = balance
    monthlyRate = annualRate/12
    minMonthly = balance/12
    maxMonthly = (balance * (1 + monthlyRate ** 12 )/12
    monthlyPayment = (minMonthly + maxMonthly)/2
    numMonths = 1
    #define function to check balance after 12 months       
    def balanceAfterYear (balance, monthlyRate, monthlyPayment):
        for numMonths in range (1,13):
            interest = balance * monthlyRate
            balance += interest - monthlyPayment
            if balance <= 0:
                break
        return [balance, numMonths]
    resultList = balanceAfterYear(initialBalance, monthlyRate, monthlyPayment)
    print resultList[0],resultList[1]


payInOne_BisectionSearch (input("Enter the outstanding balance"),input("Enter annual rate as a decimal"))

Answer 1

您忘记了上一行的结束括号。

var result = cmd.ExecuteScalar();

尝试编写Python闭包的语法无效

1 个答案: