作业一:购物车程序

Posted 所爱隔山海,山海不可平

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  1 # 1.三级菜单
  2 menu = {
  3     北京:{
  4         海淀:{
  5             五道口:{
  6                 soho:{},
  7                 网易:{},
  8                 google:{}
  9             },
 10             中关村:{
 11                 爱奇艺:{},
 12                 汽车之家:{},
 13                 youku:{},
 14             },
 15             上地:{
 16                 百度:{},
 17             },
 18         },
 19         昌平:{
 20             沙河:{
 21                 老男孩:{},
 22                 北航:{},
 23             },
 24             天通苑:{},
 25             回龙观:{},
 26         },
 27         朝阳:{},
 28         东城:{},
 29     },
 30     上海:{
 31         闵行:{
 32             "人民广场":{
 33                 炸鸡店:{}
 34             }
 35         },
 36         闸北:{
 37             火车战:{
 38                 携程:{}
 39             }
 40         },
 41         浦东:{},
 42     },
 43     山东:{},
 44 }
 45 
 46 exit_tag=True
 47 while exit_tag:
 48     for key in menu:
 49         print(key)
 50     choice=input(>: ).strip()
 51     if choice == quit:
 52         exit_tag=False
 53         continue
 54     if len(choice) == 0:
 55         continue
 56 
 57     if choice in menu:
 58         while exit_tag:
 59             first= menu[choice]
 60             for key2 in second: #第二层循环
 61                 print(key2)
 62             choice2=input(>>:).strip()
 63             if choice2 == bye:
 64                 break
 65             if choice2 == quit:
 66                 exit_tag = False
 67                 continue
 68             if len(choice2) == 0:
 69                 continue
 70             if choice2 in first:
 71                 while exit_tag:
 72                     second = first[choice2]
 73                     for key3 in second: #第三层
 74                         print(key3)
 75                     choice3 = input(>>>: ).strip()
 76                     if choice3 == bye:
 77                         break
 78                     if choice3 == quit:
 79                         exit_tag = False
 80                         continue
 81                     if  choice3 in third:
 82                         third = second[choice3]
 83                         for key4 in third:
 84                             print(key4)
 85                         choice4 = input(>>>>: ).strip()
 86                         if  choice4 == bye:
 87                             break
 88                         if choice4 == quit:
 89                             exit_tag=False
 90                             continue
 91 #
 92 # 2.购物车程序:
 93 good = {
 94     1:{apple: 100},
 95     2:{tesla: 100},
 96     3:{mac: 100},
 97     4:{lenovo: 100},
 98     5:{chicken: 100},
 99 }
100 shoping_list = []
101 exit_tag = True
102 count = 0
103 while exit_tag:
104     account = input(your acconut: ).strip(|)
105     password = input(your password: ).strip()
106     with open(login.txt, r) as file:
107         pair = file.read().split(|)
108         name, secert = pair
109         # print(name,secert)
110     if account not in pair:
111         print(用户名不存在)
112     if account == name and password == secert:
113         print(登陆成功)
114         salary = input(请输入你的工资: ).strip()
115         if salary == quit:
116             exit_tag = False
117             continue
118         if not salary.isdigit():
119             print(请重新输入(工资必须为数字):)
120         else:
121             salary_balance = int(salary)
122             while exit_tag:
123                 for key in good:
124                     print(key,good[key])
125                 serial = input(请输入商品编号: ).strip()
126                 if serial == quit:
127                     exit_tag = False
128                     continue
129                 if serial in good:
130                     number = input(请输入购买的商品个数:).strip()
131                     if  number.isdigit():
132                         goods_name = list(good[serial])[0]
133                         goods_price = good[serial][goods_name]
134                         print(你选择购买的商品为:%s  单价为:%s  购买个数为: %s %(goods_name,goods_price,number))
135                         shoping_list.append((goods_name,goods_price,number))
136                         goods_sum = int(goods_price)*int(number)
137                         salary_balance -= goods_sum
138                         if salary_balance < 0:
139                             print(你的账户余额不足,退出!)
140                             exit_tag = False
141                             continue
142                         else:
143                             continue
144                     else:
145                         print(商品个数必须为数字:)
146                 else:
147                     print(请输入正确的商品编号: )
148             print(你的购物清单为%s \n %(shoping_list))
149     else:
150         print(你输入的密码不对,请重新输入!)
151         count += 1
152     if count > 2:
153         print(你尝试的次数过多,请稍后再试!)
154         exit_tag =False
155         continue

 

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