个人所得税计算器函数代码

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def income_tax():
    """
    用户输入应发工资薪金所得、五险一金金额和个税免征额，输出应缴税款和实发工资，
    结果保留小数点后两位。当输入数字小于0 或等于0 时，输出“error”。
    实发工资 = 应发工资 - 五险一金 - 个人所得税
    建议使用以下变量名：
    salary：每月应发工资薪金
    insurance_fund：五险一金
    exemption：个税免征额
    educted_amount：速算扣除数
    测试用例
    输入（冒号前是提示性文字，冒号后的数字为用户输入）
    请输入应发工资薪金金额：16000
    请输入五险一金金额：4000
    请输入个税免征额：5000
    输出
    应缴税款490.00 元，实发工资11510.00 元。
    """
    # ====================Begin===================================
    salary = float(input())
    insurance_fund = float(input())
    exemption = float(input())

    if salary <= 0 or insurance_fund <= 0 or exemption <= 0:
        print("error")
        return

    # 计算应缴税款
    taxable_income = salary - insurance_fund - exemption
    if taxable_income <= 3000:
        tax = taxable_income * 0.03 - 0
    elif taxable_income <= 12000:
        tax = taxable_income * 0.1 - 210
    elif taxable_income <= 25000:
        tax = taxable_income * 0.2 - 1410
    elif taxable_income <= 35000:
        tax = taxable_income * 0.25 - 2660
    elif taxable_income <= 55000:
        tax = taxable_income * 0.3 - 4410
    elif taxable_income <= 80000:
        tax = taxable_income * 0.35 - 7160
    else:
        tax = taxable_income * 0.45 - 15160

    if tax < 0:
        tax = 0

    # 计算实发工资
    net_salary = salary - insurance_fund - tax

    print(f"应缴税款{tax:.2f}元，实发工资{net_salary:.2f}元.")
    # ======================End=================================

if __name__ == "__main__":
    income_tax()  # 调用函数完成计算和输出