所得税计算器Python

所得税计算器是一个用于计算个人或企业应缴纳所得税的工具，通常会考虑收入、税率、扣除项等因素。在Python中实现这样的计算器，你可以创建一个函数，接受用户的收入、税率和其他相关信息作为输入，然后根据税法计算应缴税款。

以下是一个简单的例子，展示如何用Python编写一个基础版的所得税计算器：

class IncomeTaxCalculator:
    def __init__(self, income, tax_brackets, standard_deduction):
        self.income = income
        self.tax_brackets = tax_brackets
        self.standard_deduction = standard_deduction

    def calculate_tax(self):
        taxable_income = self.income - self.standard_deduction
        total_tax = 0
        for bracket, rate in self.tax_brackets.items():
            if taxable_income > bracket:
                tax_in_bracket = (taxable_income - bracket) * rate / 100
                total_tax += tax_in_bracket
                taxable_income -= bracket
        return round(total_tax, 2)

# 示例税法参数
tax_brackets = {
    (0, 50000): 0.1,
    (50000, 100000): 0.2,
    (100000, float('inf')): 0.3,
}

income = float(input("请输入年收入: "))
standard_deduction = 10000  # 示例标准扣除额
calculator = IncomeTaxCalculator(income, tax_brackets, standard_deduction)
tax_amount = calculator.calculate_tax()
print(f"应缴税款为: {tax_amount}元")