API 管理特价

class APIPricingManager:
    def __init__(self):
        self.pricing_rules = {}

    def add_special_price(self, api_name, start_date, end_date, discount_rate):
        """添加特价规则"""
        self.pricing_rules[api_name] = {
            'start_date': start_date,
            'end_date': end_date,
            'discount_rate': discount_rate
        }

    def get_current_price(self, api_name, base_price):
        """获取当前API的实际价格"""
        if api_name in self.pricing_rules:
            rule = self.pricing_rules[api_name]
            current_date = datetime.now()
            if rule['start_date'] <= current_date <= rule['end_date']:
                return base_price * (1 - rule['discount_rate'])
        return base_price

# 使用示例
manager = APIPricingManager()
manager.add_special_price('example_api', datetime(2023, 10, 1), datetime(2023, 10, 31), 0.2)
current_price = manager.get_current_price('example_api', 100)  # 假设基础价格为100
print(f"当前API价格: {current_price}")