1. \u5546\u54c1\u4fe1\u606f\u7ba1\u7406\u6a21\u5757\uff1a\u5305\u62ec\u5546\u54c1\u540d\u79f0\u3001\u4ef7\u683c\u3001\u5e93\u5b58\u7b49\u4fe1\u606f\u7684\u7ba1\u7406\u3002\n2. \u4f1a\u5458\u7ba1\u7406\u6a21\u5757\uff1a\u5305\u62ec\u4f1a\u5458\u4fe1\u606f\u7684\u7ba1\u7406\uff0c\u5982\u4f1a\u5458\u7b49\u7ea7\u3001\u767b\u8bb0\u7b49\u3002\n3. \u8d2d\u7269\u8f66\u7ba1\u7406\u6a21\u5757\uff1a\u5305\u62ec\u6dfb\u52a0\u3001\u5220\u9664\u3001\u4fee\u6539\u5546\u54c1\u6570\u91cf\u7b49\u64cd\u4f5c\u3002\n4. \u6298\u6263\u8ba1\u7b97\u6a21\u5757\uff1a\u6839\u636e\u5546\u54c1\u4ef7\u683c\u548c\u4f1a\u5458\u7b49\u7ea7\u8ba1\u7b97\u6298\u6263\uff0c\u5e76\u8ba1\u7b97\u51fa\u5b9e\u9645\u4ef7\u683c\u3002\n5. \u7ed3\u7b97\u6a21\u5757\uff1a\u5c06\u8d2d\u7269\u8f66\u4e2d\u7684\u5546\u54c1\u4ef7\u683c\u548c\u6298\u6263\u8ba1\u7b97\u51fa\u6765\uff0c\u751f\u6210\u8ba2\u5355\u5e76\u8fdb\u884c\u7ed3\u7b97\u3002\n\n\u7b97\u6cd5\u63cf\u8ff0\uff1a\n1. \u5546\u54c1\u4fe1\u606f\u7ba1\u7406\u6a21\u5757\uff1a\u4f7f\u7528\u4e00\u4e2a\u5b57\u5178\u6765\u5b58\u50a8\u5546\u54c1\u4fe1\u606f\uff0c\u5176\u4e2d\u952e\u4e3a\u5546\u54c1\u540d\u79f0\uff0c\u503c\u4e3a\u5305\u542b\u4ef7\u683c\u3001\u5e93\u5b58\u7b49\u4fe1\u606f\u7684\u5b50\u5b57\u5178\u3002\n2. \u4f1a\u5458\u7ba1\u7406\u6a21\u5757\uff1a\u4f7f\u7528\u4e00\u4e2a\u5b57\u5178\u6765\u5b58\u50a8\u4f1a\u5458\u4fe1\u606f\uff0c\u5176\u4e2d\u952e\u4e3a\u4f1a\u5458\u540d\u79f0\uff0c\u503c\u4e3a\u5305\u542b\u4f1a\u5458\u7b49\u7ea7\u3001\u767b\u8bb0\u7b49\u4fe1\u606f\u7684\u5b50\u5b57\u5178\u3002\n3. \u8d2d\u7269\u8f66\u7ba1\u7406\u6a21\u5757\uff1a\u4f7f\u7528\u4e00\u4e2a\u5217\u8868\u6765\u5b58\u50a8\u8d2d\u7269\u8f66\u4e2d\u7684\u5546\u54c1\u4fe1\u606f\uff0c\u5176\u4e2d\u6bcf\u4e2a\u5143\u7d20\u4e3a\u4e00\u4e2a\u5b57\u5178\uff0c\u5305\u542b\u5546\u54c1\u540d\u79f0\u3001\u6570\u91cf\u7b49\u4fe1\u606f\u3002\n4. \u6298\u6263\u8ba1\u7b97\u6a21\u5757\uff1a\u6839\u636e\u5546\u54c1\u4ef7\u683c\u548c\u4f1a\u5458\u7b49\u7ea7\u8ba1\u7b97\u6298\u6263\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e2a\u51fd\u6570\u6765\u5b9e\u73b0\u3002\u4f8b\u5982\uff0c\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570discount(price, level)\uff0c\u6839\u636e\u4ef7\u683c\u548c\u4f1a\u5458\u7b49\u7ea7\u8ba1\u7b97\u51fa\u6298\u6263\u7387\uff0c\u518d\u6839\u636e\u6298\u6263\u7387\u8ba1\u7b97\u51fa\u5b9e\u9645\u4ef7\u683c\u3002\n5. \u7ed3\u7b97\u6a21\u5757\uff1a\u5c06\u8d2d\u7269\u8f66\u4e2d\u7684\u5546\u54c1\u4ef7\u683c\u548c\u6298\u6263\u8ba1\u7b97\u51fa\u6765\uff0c\u751f\u6210\u8ba2\u5355\u5e76\u8fdb\u884c\u7ed3\u7b97\u3002\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e2a\u51fd\u6570\u6765\u5b9e\u73b0\u3002\u4f8b\u5982\uff0c\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570checkout(cart, member)\uff0c\u6839\u636e\u8d2d\u7269\u8f66\u4e2d\u7684\u5546\u54c1\u4fe1\u606f\u548c\u4f1a\u5458\u4fe1\u606f\uff0c\u8ba1\u7b97\u51fa\u8ba2\u5355\u603b\u91d1\u989d\u3001\u6298\u6263\u91d1\u989d\u7b49\uff0c\u6700\u7ec8\u751f\u6210\u8ba2\u5355\u5e76\u8f93\u51fa\u3002\n\n\u793a\u4f8b\u4ee3\u7801\uff1a\n```python# \u5546\u54c1\u4fe1\u606f\u7ba1\u7406\u6a21\u5757products = { 'iphone': {'price': 9999, 'stock': 100}, 'ipad': {'price': 3999, 'stock': 50}, 'macbook': {'price': 8999, 'stock': 30},}

\u4f1a\u5458\u7ba1\u7406\u6a21\u5757members = { '\u5f20\u4e09': {'level': 1, 'points': 100}, '\u674e\u56db': {'level': 2, 'points': 200}, '\u738b\u4e94': {'level': 3, 'points': 300},}

\u8d2d\u7269\u8f66\u7ba1\u7406\u6a21\u5757cart = [ {'name': 'iphone', 'count': 2}, {'name': 'ipad', 'count': 1},]

\u6298\u6263\u8ba1\u7b97\u6a21\u5757def discount(price, level): if level == 1: return 0.95 elif level == 2: return 0.9 elif level == 3: return 0.85 else: return 1

\u7ed3\u7b97\u6a21\u5757def checkout(cart, member): total_price = 0 discount_price = 0 for item in cart: name = item['name'] count = item['count'] price = products[name]['price'] total_price += price * count discount_rate = discount(price, member['level']) discount_price += price * count * (1 - discount_rate) order = {'cart': cart, 'total_price': total_price, 'discount_price': discount_price} return order

\u6d4b\u8bd5\u4ee3\u7801member = members['\u5f20\u4e09']order = checkout(cart, member)print(orde