第2周作业1
Posted ld1977
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1.优化购物程序，购买时允许用户选择购买多少件，
2.允许多用户登录，下一次登录后，继续按上次的余额继续购买 ,可以充值 （每个用户有独立的保存文件）
3.允许用户查看之前的购买记录（记录要显示商品购买时间）
4.商品列表分级展示，比如：
第一层菜单：
1.家电类
2.衣服类
3.手机类
4.车类
...
选择一个，车类，进入第2层
1。BMW X3 33333
2.Audi Q5 33333
3.Pasate 33335
4.Tesla Model_3 430000
5.Tesla Model S 888888
购物车：
1. 商品信息- 数量、单价、名称
2. 用户信息- 帐号、密码、余额
3. 用户可充值
4. 购物历史信息
5. 允许用户多次购买，每次可购买多件
6. 余额不足时进行提醒
7. 用户退出时 ，输出档次购物信息
8. 用户下次登陆时可查看购物历史
9. 商品列表分级显示
5.显示已购买商品时，如果有重复的商品，不打印多行，而是在一行展示，如
id p_name num total_price
1. TeslaModelS 2 3434343434
2. Coffe 2 60
3. Bike 1 700
###
Blog一定要写
readme一定要写
流程图 一定画
一定不要copy
会用到 文件 ，datetime模块，json
折磨啊，已经被搞晕，还有需要完善的地方。
#!/usr/bin/env python # -*-coding:utf-8-*- # __author__="Liudong" import json if __name__ == \'__main__\': # user_info={\'root\':[123,5000],\'sys\':[123,10000],\'admin\':[123,200000]} # json.dump(user_info, open(\'user_info.txt\',\'w\'))#把用户信息以user:pass:amount的格式写入文本文件 # purchase_log={\'root\':[[\'iphone7\' ,2 ,\'2016-6-10\'],[\'西装\',1 ,\'2015-5-2\']], # \'sys\':[[\'乐视电视\',1,\'2016-9-20\'] ,[\'华为\',5,\'2016-7-15\']], # \'admin\':[[\'乐视电视\',1,\'2016-8-10\'] ,[\'运动服\',3,\'2016-10-10\']] # } # json.dump(purchase_log,open(\'purchase_log.txt\',\'w\',encoding=\'utf-8\')) shop_car = [] welcom_msg = \'Welcome to Shopping Home\'.center(50, \'-\') print(welcom_msg) for i in range(3): username = input(\'Please input your username:[q=quit]\') if username == \'q\': exit() with open(\'user_info.txt\', \'r\', encoding=\'utf-8\') as user_account: # 读取用户信息 user_info = json.load(user_account) # 用json读取文件，字典格式 for user_name in user_info.keys(): # 判断用户名是否存在 # print(user_info[user_name][0]) # print(user_name) # print(username) j = 0 while j < 3: # 给3次输入密码机会 password = input(\'Please input your password:\') if password == str(user_info[user_name][0]): print(\'login successed! Have a happy shopping Time!\') while True: print(\'#\' * 50) print(\'1.查看购买记录\\n2.充值\\n3.查询余额\\n4.购物\\n5.查看购物车\\n[q:quit]\') user_want = input(\'What do you do?\') if user_want == \'q\': exit() if user_want == \'1\': print(\'user %s purchase log list:\'.center(50, \'*\') % user_name) with open(\'purchase_log.txt\', \'r\', encoding=\'utf-8\') as purchase_log: # 读取购买记录文件 user_purchase_log = json.load(purchase_log) print(user_purchase_log[username]) if user_want == \'2\': print(\'*\' * 50) charge_amount = input(\'please input amount you want to charge:\') # user_info_amountw = json.load(\'user_info.txt\', \'r\') user_info[username][1] += int(charge_amount) # print(user_info) json.dump(user_info, open(\'user_info.txt\', \'w\')) print(\'charge successed!\') if user_want == \'3\': print(\'*\' * 50) print(\'your account is ￥%s\' % user_info[user_name][1]) if user_want == \'4\': product_list = { \'家电类\': [(\'乐视电视\', 7000), (\'海尔冰箱\', 5000), (\'小天鹅洗衣机\', 2000)], \'衣服类\': [(\'西装\', 8000), (\'休闲夹克\', 2000), (\'运动服\', 800)], \'手机类\': [(\'Iphone7\', 7000), (\'小米Note\', 2000), (\'华为\', 1000)], \'车类\': [(\'奔驰ML\', 800000), (\'特斯拉\', 700000), (\'奥迪Q7\', 750000)]} class_list = [] # 获取序列号和字典key组成的列表 class2 = [] while True: print("Products list".center(50, \'-\')) for index, item in enumerate(product_list): # 打印序列号和类别 print(index, item) class_list = [index, item] # 将序列号和商品类别key保存成列表 class2.append(str(class_list[1])) # class2用于保存用户选择商品类key值 # print(class2) #存储类别用于后面选择对应类别 print(\'End\'.center(50, \'-\')) class1_choice = input(\'choose class number 0-3 to enter:(q:quit)\').strip() if class1_choice == \'0\': # 用户选择第一类商品 class_choice = product_list[class2[0]] # 根据商品类别和对应的下标号，获取商品列表 # print(class_choice) for item in enumerate(class_choice): # 从第1级类中，枚举各个商品 index = item[0] # print(item) p_name = item[1][0] p_price = item[1][1] print(index, \'.\', p_name, p_price) buy_item = input(\'What do you want to buy?:[q=quit,c=check]\') if buy_item.isdigit(): # 肯定为选择商品 buy_item = int(buy_item) if buy_item < len(class_choice): # print(class1_choice) # print(class_list) p_item = [p_name[1]] # print(p_item) # print(user_info[user_name][1]) if p_price <= user_info[user_name][1]: # 买的起 shop_car.append(p_item) # 放入购物车 user_info[user_name][1] -= p_price # 扣钱 print( \'Added [%s] into your shop car,your current balance is \' \'\\033[31;1m[%s]\\033[0m\' % (p_item, user_info[user_name][1])) # 字体加颜色 else: print(\'Your balance is [%s],cannot afford this product..\' % user_info[user_name][1]) else: if class1_choice == \'q\' or class1_choice == \'quit\': print(\'purchased products as blew:\'.center(40, \'*\')) for item in shop_car: print(item) print(\'END\'.center(40, \'*\')) print(\'Your balance is [%s]\' % user_info[user_name][1]) print(\'bye.\') exit() elif class1_choice == \'c\' or class1_choice == \'check\': print(\'purchased products as blew:\'.center(40, \'*\')) for item in shop_car: print(item) # 背景加颜色 print(\'Your balance is \\033[41;1m[%s]\\033[0m\' % user_info[user_name][1]) if class1_choice == \'1\': # 用户选择第一类商品 class_choice = product_list[class2[0]] # 根据商品类别和对应的下标号，获取商品列表 # print(class_choice) for item in enumerate(class_choice): # 从第1级类中，枚举各个商品 index = item[0] # print(item) p_name = item[1][0] p_price = item[1][1] print(index, \'.\', p_name, p_price) buy_item = input(\'What do you want to buy?:[q=quit,c=check]\') if buy_item.isdigit(): # 肯定为选择商品 buy_item = int(buy_item) if buy_item < len(class_choice): # print(class1_choice) # print(class_list) p_item = [p_name[1]] # print(p_item) # print(user_info[user_name][1]) if p_price <= user_info[user_name][1]: # 买的起 shop_car.append(p_item) # 放入购物车 user_info[user_name][1] -= p_price # 扣钱 print( \'Added [%s] into your shop car,your current balance is \' \'\\033[31;1m[%s]\\033[0m\' % (p_item, user_info[user_name][1])) # 字体加颜色 else: print(\'Your balance is [%s],cannot afford this product..\' % user_info[user_name][1]) else: if class1_choice == \'q\' or class1_choice == \'quit\': print(\'purchased products as blew:\'.center(40, \'*\')) for item in shop_car: print(item) print(\'END\'.center(40, \'*\')) print(\'Your balance is [%s]\' % user_info[user_name][1]) print(\'bye.\') exit() elif class1_choice == \'c\' or class1_choice == \'check\': print(\'purchased products as blew:\'.center(40, \'*\')) for item in shop_car: print(item) # 背景加颜色 print(\'Your balance is \\033[41;1m[%s]\\033[0m\' % user_info[user_name][1]) if class1_choice == \'2\': # 用户选择第一类商品 class_choice = product_list[class2[0]] # 根据商品类别和对应的下标号，获取商品列表 # print(class_choice) for item in enumerate(class_choice): # 从第1级类中，枚举各个商品 index = item[0] # print(item) p_name = item[1][0] p_price = item[1][1] print(index, \'.\', p_name, p_price) buy_item = input(\'What do you want to buy?:[q=quit,c=check]\') if buy_item.isdigit(): # 肯定为选择商品 buy_item = int(buy_item) if buy_item < len(class_choice): # print(class1_choice) # print(class_list) p_item = [p_name[1]] # print(p_item) # print(user_info[user_name][1]) if p_price <= user_info[user_name][1]: # 买的起 shop_car.append(p_item) # 放入购物车 user_info[user_name][1] -= p_price # 扣钱 print( \'Added [%s] into your shop car,your current balance is \' \'\\033[31;1m[%s]\\033[0m\' % (p_item, user_info[user_name][1])) # 字体加颜色 else: print(\'Your balance is [%s],cannot afford this product..\' % user_info[user_name][1]) else: if class1_choice == \'q\' or class1_choice == \'quit\': print(\'purchased products as blew:\'.center(40, \'*\')) for item in shop_car: print(item) print(\'END\'.center(40, \'*\')) print(\'Your balance is [%s]\' % user_info[user_name][1]) print(\'bye.\') exit() elif class1_choice == \'c\' or class1_choice == \'check\': print(\'purchased products as blew:\'.center(40, \'*\')) for item in shop_car: print(item) # 背景加颜色 print(\'Your balance is \\033[41;1m[%s]\\033[0m\' % user_info[user_name][1]) if class1_choice == \'3\': # 用户选择第一类商品 class_choice = product_list[class2[0]] # 根据商品类别和对应的下标号，获取商品列表 # print(class_choice) for item in enumerate(class_choice): # 从第1级类中，枚举各个商品 index = item[0] # print(item) p_name = item[1][0] p_price = item[1][1] print(index, \'.\', p_name, p_price) buy_item = input(\'What do you want to buy?:[q=quit,c=check]\') if buy_item.isdigit(): # 肯定为选择商品 buy_item = int(buy_item) if buy_item < len(class_choice): # print(class1_choice) # print(class_list) p_item = [p_name[1]] # print(p_item) # print(user_info[user_name][1]) if p_price <= user_info[user_name][1]: # 买的起 shop_car.append(p_item) # 放入购物车 user_info[user_name][1] -= p_price # 扣钱 print( \'Added [%s] into your shop car,your current balance is \' \'\\033[31;1m[%s]\\033[0m\' % (p_item, user_info[user_name][1])) # 字体加颜色 else: print(\'Your balance is [%s],cannot afford this product..\' % user_info[user_name][1]) else: if class1_choice == \'q\' or class1_choice == \'quit\': print(\'purchased products as blew:\'.center(40, \'*\')) for item in shop_car: print(item) print(\'END\'.center(40, \'*\')) print(\'Your balance is [%s]\' % user_info[user_name][1]) print(\'bye.\') exit() elif class1_choice == \'c\' or class1_choice == \'check\': print(\'purchased products as blew:\'.center(40, \'*\')) for item in shop_car: print(item) # 背景加颜色 print(\'Your balance is \\033[41;1m[%s]\\033[0m\' % user_info[user_name][1]) if user_want == \'5\': print(shop_car) else: print(\'Invalid username or password...\') print(\'this is the %d time(s)\' % (j + 1)) j += 1 else: print(\'Forget password? Please send a mail to Administrator,bye\') user_account.close() exit()
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