无人超市自动收费系统代码

无人超市自动收费系统的代码通常会涉及几个关键模块，包括商品识别、价格计算、支付处理和库存管理等。这里是一个简单的概念框架，而不是完整的代码：

class ProductScanner:
    def __init__(self):
        pass

    def scan_product(self, item):
        # 扫描商品并返回其条形码或RFID信息
        pass


class PriceCalculator:
    def __init__(self):
        self.products = {}  # 商品信息字典，包含价格

    def get_price(self, product_id):
        return self.products.get(product_id, 0)


class PaymentHandler:
    def calculate_total(self, scanned_products):
        total = sum(PriceCalculator().get_price(product_id) for product_id in scanned_products)
        return total

    def process_payment(self, total_amount):
        # 调用实际的支付接口或第三方服务完成交易
        pass


class InventoryManager:
    def update_stock(self, product_id, quantity):
        # 更新库存数据库操作
        pass


def main():
    scanner = ProductScanner()
    price_calculator = PriceCalculator()
    
    # 用户购物流程
    scanned_products = scanner.scan_product()  # 获取扫描的商品列表
    total_amount = PaymentHandler().calculate_total(scanned_products)
    PaymentHandler().process_payment(total_amount)
    InventoryManager().update_stock(scanned_products, -1)  # 减少库存
    
    print(f"Total cost: {total_amount}")

if __name__ == "__main__":
    main()