Python购物车
一、流程图
二、目录结构
三、代码
1、bin目录：
1 import sys,os,json 2 dir_path = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) 3 sys.path.append(dir_path) 4 from core import shopping 5 6 if __name__ == "__main__": 7 shopping.main()
2、conf目录：
未编写
3、core目录：
import json,sys,os dir_path = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) sys.path.append(dir_path) user_path = dir_path + "/db/user_data.json" user_infor_path = dir_path + "/db/user_infor.json" with open(user_path, "r", encoding="UTF-8") as f_load: user_list = json.load(f_load) with open(user_infor_path, "r", encoding="UTF-8") as f_load: user_infor_list = json.load(f_load) def login_check(): name = input("input your user_name:") passwd = input("input your user_passwd:") if name in user_list and passwd == user_list[name]: print("登陆成功！") return name else: print("wrong uesr_name or password...") exit() def creat_user(): new_user = input("input user_name:") if new_user in user_list: print("用户已存在") return else: new_pswd = input("input user_pswd:") user_list[new_user] = new_pswd with open(user_path, "w", encoding="UTF-8") as f_dump: json.dump(user_list, f_dump) user_infor_list[new_user] = {"money": 1000, "user_goods": []} with open(user_infor_path, "w", encoding="UTF-8") as f_dump: json.dump(user_infor_list, f_dump) print("用户创建成功！")
1 import sys,os,json 2 dir_path = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) 3 sys.path.append(dir_path) 4 from core import login 5 user_path = dir_path + "/db/user_infor.json" 6 goods_path = dir_path + "/db/goods.json" 7 8 def buy(who): 9 with open(user_path, "r", encoding="UTF-8") as f_load: 10 user_infor = json.load(f_load) 11 user_goods_1 = user_infor[who] 12 user_goods = user_goods_1["user_goods"] 13 while True: 14 print("--商品列表--") 15 shop_list = goods_list() 16 for i in shop_list: 17 print(i,shop_list[i]) 18 print("------------") 19 print("账户余额：",user_goods_1["money"]) 20 buy_sonething = input("选择购买的商品，按q退出！->") 21 if buy_sonething in shop_list: 22 user_money = user_goods_1["money"] 23 cost_money = shop_list[buy_sonething] 24 now_money = user_money - cost_money 25 if int(now_money) >= 0 : 26 print("余额",now_money) 27 user_goods.append([buy_sonething,shop_list[buy_sonething]]) 28 user_goods_1["user_goods"] = user_goods 29 user_goods_1["money"] = now_money 30 user_infor[who] = user_goods_1 31 with open(user_path, "w", encoding="UTF-8") as f_dump: 32 json.dump(user_infor, f_dump) 33 g = input("按任意键继续，按q退出") 34 if g == 'q': 35 print("购物清单：") 36 for i in user_goods: 37 print(i) 38 return now_money 39 else: 40 continue 41 else: 42 print("余额不足！您的账户余额为：%s"%user_money) 43 exit() 44 elif buy_sonething == "q": 45 exit() 46 else: 47 print("请输入正确的商品名称！") 48 49 def goods_list(): 50 with open(goods_path,"r", encoding="utf-8") as f: 51 shop_list = json.load(f) 52 return shop_list 53 54 def type_choice(): 55 choice = input("请选择登陆模式（1.客户/2.商家）：") 56 if choice == "1": 57 print("顾客模式：") 58 return 1 59 elif choice == "2": 60 print("商家模式：") 61 return 2 62 else: 63 print("输入错误！") 64 return 0 65 66 def customer_type(): 67 web = ''' 68 "-------------" 69 "用户登录按：1" 70 "用户注册按：2" 71 "-------------" 72 ''' 73 while True: 74 print(web) 75 i = input("--->:") 76 if i == "1": 77 user = login.login_check() 78 break 79 elif i == "2": 80 login.creat_user() 81 else: 82 print("请选择正确的编号！") 83 buy(user) 84 85 def manage_type(): 86 password = "123456" 87 pswd = input("请输入管理员密码：") 88 if pswd == password: 89 while True: 90 goods_dir = goods_list() 91 for i in goods_dir: 92 print(i,goods_dir[i]) 93 goods_contral = input("1：修改价格、2：添加商品、3：删除商品、q：退出：") 94 if goods_contral == "1": 95 change_goods = input("选择要修改的商品：") 96 goods_money = input("输入%s的新价格："%change_goods) 97 goods_dir[change_goods] = int(goods_money) 98 with open(goods_path, "w", encoding="UTF-8") as f_dump: 99 json.dump(goods_dir, f_dump) 100 elif goods_contral == "2": 101 new_goods = input("新商品：") 102 new_price = input("价格：") 103 goods_dir[new_goods] = int(new_price) 104 print("添加成功") 105 with open(goods_path, "w", encoding="UTF-8") as f_dump: 106 json.dump(goods_dir, f_dump) 107 elif goods_contral == "3": 108 del_goods = input("选择要删除的商品：") 109 del goods_dir[del_goods] 110 with open(goods_path, "w", encoding="UTF-8") as f_dump: 111 json.dump(goods_dir, f_dump) 112 elif goods_contral == "q": 113 break 114 else: 115 print("输入错误！") 116 else: 117 print("密码错误！") 118 exit() 119 120 def main(): 121 user_type = type_choice() 122 if user_type == 1: # 客户 123 customer_type() 124 elif user_type == 2: # 商家 125 manage_type() 126 else: # 错误 127 exit() 128 129 if __name__ == "__main__": 130 main()
4、db目录：
{"bike": 200, "fruit": 80, "book": 300, "phone": 2000}
{"aa": "123", "zz": "123", "jj": "123"}
{"jj": {"money": 919, "user_goods": [["fruit", 80], ["phone", 1]]}, "zz": {"money": 379, "user_goods": [["bike", 300], ["bike", 200], ["bike", 200]]}, "aa": {"money": 1420, "user_goods": [["bike", 300], ["fruit", 80]]}}
5、doc目录：
readme.doc