用python语言写公积金贷款计算器

公积金贷款计算器通常是用于计算个人按照国家规定的公积金政策，如贷款额度、利率、期限等因素计算每月还款额的工具。以下是使用Python编写一个简化版的公积金贷款计算器的基本步骤：

class LoanCalculator:
    def __init__(self, loan_amount, interest_rate, term_years):
        self.loan_amount = loan_amount
        self.interest_rate = interest_rate / 100  # 将百分比转换为小数
        self.term_years = term_years
        self.months_in_term = term_years * 12

    def monthly_interest(self):
        return self.interest_rate / 12

    def total_interest(self):
        return self.monthly_interest() * self.months_in_term * self.loan_amount

    def monthly_payment(self):
        mortgage_rate = (self.interest_rate + 1) ** (1 / 12)
        return self.loan_amount * mortgage_rate / (mortgage_rate - 1)

def main():
    loan_amount = float(input("请输入贷款金额(万元): "))
    interest_rate = float(input("请输入年利率(%) : "))
    term_years = int(input("请输入贷款年限(年): "))

    calculator = LoanCalculator(loan_amount, interest_rate, term_years)
    monthly_payment = calculator.monthly_payment()
    total_interest = calculator.total_interest()

    print(f"每月还款额: {monthly_payment:.2f}元")
    print(f"总利息: {total_interest:.2f}元")

if __name__ == "__main__":
    main()

在这个例子中，用户输入贷款金额、年利率和贷款年限，程序会计算出每月还款额以及总利息。注意这只是一个基础版本，实际应用中可能还需要考虑更多因素，例如是否可以提前还款、是否有罚息等。