python - 由于函数定义末尾的冒号，我不断收到语法错误

我是python的新手，并且通常是编程的，所以这可能非常简单，但是在为minPayment定义函数的代码行的末尾，我始终遇到此语法错误。我看不到任何问题...到目前为止是程序。

习题1：信用卡余额计算器

print 'Month 1'
OutstandingBalance = raw_input(float('enter your balance'))
AnnualInterestRate = raw_input(float('enter rate as a decimal(%/100)'))
MinimumMonthlyPaymentRate = raw_input(float('enter minimum monthly payment rate as a decimal(%/100)'))
def minPayment:
     minPayment = MinimumMonthlyPaymentRate * OutstandingBalance
        print 'minimum payment='minPayment
    return minPayment
def accIntrst:
    accIntrst = (AnnualInterestRate/12.0) * OutstandingBalance
        print 'accrued interest = 'accIntrst
    return accIntrst
def balPaid:
    balPaid = accIntrst - minPayment
        print 'balance paid = 'balPaid
    return balPaid
def remBal:
    remBal = OutstandingBalance - balPaid
        print 'remaining balance = 'remBal
    return remBal

任何反馈，不胜感激！

最佳答案

在函数中添加括号。 Python语法要求如此。

因此，代替def minPayment:，而写def minPayment():。