1 commodity = [[1,'满汉全席',5000],[2,'烧烤',500],[3,'自助餐',50]]
 2 shopping_cards = []
 3 flag = 0
 4 while flag==0:
 5     salary = int(input("请输入你的工资(若想退出请输入0)："))
 6     if salary==0:
 7         flag = 1
 8     while flag==0:
 9         info = '''
10         ------ 商品信息 ------
11         编号    物品    价格
12         '''
13         print(info)
14         for i in commodity:
15             print(i)
16         while(salary!=0 and flag==0):
17             a = int(input("请输入你想买的商品编号(退出请输入0)："))
18             if a==0:
19                 flag = 1
20                 break
21             for x in commodity:
22                 if a==x[0] and salary>=x[2]:
23                     shopping_cards.append(x)
24                     salary = salary - x[2]
25                     break
26                 elif a==x[0] and salary<x[2]:
27                     print("你的工资不足以支付所选商品，请合理消费！")
28                     break
29             if salary<commodity[2][2]:
30                 print("你的余额不足以购买任意商品了！")
31                 continue
32 print("------ 已购商品 ------")
33 print("编号   商品   价格")
34 if len(shopping_cards)>0:
35     for y in shopping_cards:
36         print(y)
37     print("总计购买数量：",len(shopping_cards))
38 else:
39     print("总计购买数量：0")