整体案例打包了，有兴趣下载看看

链接：https://pan.baidu.com/s/1pM6PcKoAQ2LaXiMc79_9RQ

提取码：usuq  复制这段内容后打开百度网盘手机App，操作更方便哦

手机淘宝主程序：

  1 from main1 import account
  2 import time
  3 
  4 
  5 print("\t""\t", "-" * 10, "欢迎进入手机淘宝", "-" * 10, "\t""\t")
  6 user_account = {}
  7 new_user_account = {}
  8 while True:
  9     print("\t", "*" * 5, "编码 1 ---登录", "*" * 5, "\t")
 10     print("\t", "*" * 5, "编码 2 ---注册", "*" * 5, "\t")
 11     print("\t", "*" * 5, "编码 3 ---退出", "*" * 5, "\t")
 12     user_set = int(input("输入编码"))
 13     # 登录
 14     if user_set == 1:
 15         a = account.denglu()
 16         # 获取account.py的 denglu 函数
 17         if a[1].get(a[2]) == a[3]:
 18             a[0].close()
 19             print("登录成功")
 20             break
 21         else:
 22             a[0].close()
 23             print("用户或密码错误")
 24     #注册
 25     if user_set == 2:
 26         a = account.zhuce()
 27         # 获取account.py的 zhuce 函数
 28         if a[4] == None:
 29             user_password = input("请输入密码")
 30             user_account.update(a[0])
 31             new_user_account.setdefault(a[3], user_password)
 32             user_account.update(new_user_account)
 33             file = open(a[2], "w")
 34             file.write(str(user_account))
 35             file.close()
 36             print("注册成功")
 37         else:
 38             print("用户名已被注册")
 39     #退出
 40     if user_set == 3:
 41         print("退出成功")
 42         break
 43 time.sleep(1)
 44 from buy import buy
 45 num_a = 0
 46 while True:
 47     print("\t""\t", "-" * 10, "欢迎进入手机淘宝", "-" * 10, "\t""\t")
 48     print("\t", "*" * 5, "编码 1 ---今日特卖", "*" * 5, "\t")
 49     print("\t", "*" * 5, "编码 2 ---女士服装", "*" * 5, "\t")
 50     print("\t", "*" * 5, "编码 3 ---男士服装", "*" * 5, "\t")
 51     print("\t", "*" * 5, "编码 4 ---美食茶酒", "*" * 5, "\t")
 52     print("\t", "*" * 5, "编码 5 ---结算", "*" * 5, "\t")
 53     user_items = input("输入编码")
 54     while True:
 55         #今日特卖
 56         if user_items == "1":
 57             print("\t", "*" * 3, "编码 1 毛衣   59元", "*" * 3, "\t")
 58             print("\t", "*" * 3, "编码 2 运动鞋 69元", "*" * 3, "\t")
 59             print("\t", "*" * 3, "编码 3 运动鞋 99元", "*" * 3, "\t")
 60             user_item = input("请输入商品编号")
 61             #选择 1
 62             if user_item == "1":
 63                 a = buy.item1()
 64                 if a == "y":
 65                     continue
 66                 else:
 67                     buy.turn()
 68                     break
 69             # 选择 2
 70             if user_item == "2":
 71                 a = buy.item2()
 72                 if a == "y":
 73                     continue
 74                 else:
 75                     buy.turn()
 76                     break
 77 
 78             # 选择 3
 79             if user_item == "3":
 80                 a = buy.item3()
 81                 if a == "y":
 82                     continue
 83                 else:
 84                     buy.turn()
 85                     break
 86         #女士服装
 87         if user_items == "2":
 88             print("\t", "*" * 3, "编码 1 女装   59元", "*" * 3, "\t")
 89             user_item = input("请输入商品编号")
 90             if user_item == "1":
 91                 a = buy.girl1()
 92                 if a == "y":
 93                     continue
 94                 else:
 95                     buy.turn()
 96                     break
 97         #男士服装
 98         if user_items == "3":
 99             print("\t", "*" * 3, "编码 1 男士   59元", "*" * 3, "\t")
100             user_item = input("请输入商品编号")
101             if user_item == "1":
102                 a = buy.man1()
103                 if a == "y":
104                     continue
105                 else:
106                     buy.turn()
107                     break
108         #美食茶酒
109         if user_items == "4":
110             print("\t", "*" * 3, "编码 1 咖啡   50元", "*" * 3, "\t")
111             print("\t", "*" * 3, "编码 2 零食大礼包 69元", "*" * 3, "\t")
112             print("\t", "*" * 3, "编码 3 柠檬 30元", "*" * 3, "\t")
113             user_item = input("请输入商品编号")
114             #选择1
115             if user_item == "1":
116                 a = buy.shiwu()
117                 if a == "y":
118                     continue
119                 else:
120                     buy.turn()
121                     break
122             if user_item == "2":
123                 a = buy.shiwu1()
124                 if a == "y":
125                     continue
126                 else:
127                     buy.turn()
128                     break
129             if user_item == "3":
130                 a = buy.shiwu2()
131                 if a == "y":
132                     continue
133                 else:
134                     buy.turn()
135                     break
136          #结算
137         num_a = 0
138         if user_items == "5":
139            a = buy.jiezhan()
140            buy.turn1()
141            print("本次消费共", a)
142            num = input("谢谢，继续按W,退出按0")
143            if num == "w":
144             buy.tui()
145             break
146            if num == "0":
147             num_a += 1
148             break
149     if num_a == 1:
150         break

购买函数

 1 #返回上一级
 2 item = []
 3 def turn():
 4     num = 0
 5     print("当前已有商品")
 6     for i in item:
 7         num += 1
 8         if num & 1:
 9             print(i, "\t", end="")
10         else:
11             print(i, "元\t")
12 
13     input("输入n 返回上一级")
14 
15 #1今日特卖
16 def item1():
17     item.append("毛衣")
18     item.append(59)
19     yes_or_no = input("购买成功，是否继续y/n")
20     return yes_or_no
21 #今日特卖
22 def item2():
23     item.append("运动鞋")
24     item.append(69)
25     yes_or_no = input("购买成功，是否继续y/n")
26     return yes_or_no
27 #今日特卖
28 def item3():
29     item.append("风衣")
30     item.append(99)
31     yes_or_no = input("购买成功，是否继续y/n")
32     return yes_or_no
33 #2女士
34 def girl1():
35     item.append("女装")
36     item.append(59)
37     yes_or_no = input("购买成功，是否继续y/n")
38     return yes_or_no
39 #3男士
40 def man1():
41     item.append("男士")
42     item.append(59)
43     yes_or_no = input("购买成功，是否继续y/n")
44     return yes_or_no
45 
46 
47 
48 #4食物
49 def shiwu():
50     item.append("咖啡")
51     item.append(50)
52     yes_or_no = input("购买成功，是否继续y/n")
53     return yes_or_no
54 #食物
55 def shiwu1():
56     item.append("零食大礼包")
57     item.append(69)
58     yes_or_no = input("购买成功，是否继续y/n")
59     return yes_or_no
60 #食物
61 def shiwu2():
62     item.append("柠檬")
63     item.append(30)
64     yes_or_no = input("购买成功，是否继续y/n")
65     return yes_or_no
66 #5结账
67 def jiezhan():
68     money = 0
69     num = 0
70     for i in item:
71         if num & 1:
72             money = money + i
73         else:
74             pass
75         num += 1
76     return money
77 #退出
78 def tui():
79     item.clear()
80 
81 #统计商品
82 def turn1():
83     num = 0
84     print("当前已有商品")
85     for i in item:
86         num += 1
87         if num & 1:
88             print(i, "\t", end="")
89         else:
90             print(i, "元\t")

登录界面

#登录
def denglu():
    print("*欢迎来的登录页面*")
    user_name = input("请输入用户名")
    user_password = input("请输入密码")
    path = r"C:\Users\Administrator\Desktop\aaa.txt"
    file = open(path, "r")
    data = eval(file.read())
    return file,data,user_name,user_password



# 注册
def zhuce():
    print("*注册页面*")
    user_name = input("请输入用户名")
    path = r"C:\Users\Administrator\Desktop\aaa.txt"
    file = open(path, "r+")
    date = eval(file.read())
    user_password = date.get(user_name)
    file.close()
    return date, file, path, user_name, user_password