为什么 Python 打印" num += 1 "无效语法？

Question

balance = 5000
monthlyPaymentRate = 0.02
annualInterestRate = 0.18
num = 0
remaining_balance = 0.00
while num <= 12:
remaining_balance = (annualInterestRate/12 * (balance-(balance * monthlyPaymentRate))+ tem_balance
num += 1
print(remaining_balance)

为什么 python 打印"num += 1"语法无效？

Answer 1

其上方的行缺少右括号。
remaining_balance = (annualInterestRate/12 * (balance-(balance * monthlyPaymentRate)) + tem_balance)