要求：

 1 import time
 2 goods = [{"huawei":1000},{"apple":10},{"banana":23},{"pen":140},{"wanju":78},
 3          {"book":200},{"taideng":780},{"rou":432},{"zhuozi":653},{"yizi":1244}]
 4 
 5 
 6 
 7 buy_goods = []
 8 all_salary = 0
 9 info = True
10 #while True:
11 print("".center(6,"="),"
 
歡迎您的到來","".center(6,"="))
12 
13 while info:
14     salary = input("請輸入你的工資：")
15     print("".center(26, "="))
16     if salary.isdigit():
17         salary = int(salary)
18         while info:
19             num = 1
20             if num <= len(goods):
21                 for good in goods:
22                     for
 
 bal,value in good.items():
23                         print(num, bal," ",value)
24                     num += 1
25                 print("退出請按q或Q----購買請按Y或y")
26                 print("".center(26, "="))
27 
28                 bar_num = input("請輸入要買的物品的序號：")
29                 if bar_num == 'q' or bar_num == '
 
Q':
30                     info = False
31                 elif bar_num.isdigit():
32                     bar_num = int(bar_num)
33                     if bar_num <= len(goods) and bar_num > 0:
34                         for buy_bars,buy_salary in goods[bar_num - 1].items():
35                             if salary >= buy_salary:
36                                 salary -= buy_salary
37                                 all_salary += buy_salary
38                                 buy_goods.append(buy_bars)
39                                 #break
40                             else:
41                                 print("您的餘額不足")
42                                 time.sleep(2)
43 
44                         #break
45 
46                 elif bar_num == 'y' or bar_num == 'Y':
47                     print("您購買的貨物有：",buy_goods,"共花費：",all_salary,"元")
48                     info = False
49 
50                 else:
51                     print("輸入錯誤！！!")
52 
53 
54                         #print(buy_goods)
55     else:
56         print("輸入錯誤,請重新輸入！！！")
57         time.sleep(1)