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  • 购物车程序-练习

     1 # Author: Jason Zhu
    2 3 ''' 4 需求: 5 1. 启动程序后,让用户输入工资,然后打印商品列表 6 2. 允许用户根据商品编号购买商品 7 3. 用户选择商品后,检测余额是否充足,是就直接购买,否则就提示-您余额不足。 8 4. 可随时退出程序,退出时,打印已经购买的商品和您当前账户的余额 9 ''' 10 11 product_list = [ 12 ('小米手机',3999), 13 ('三星冰箱',12999), 14 ('罗技键盘',998), 15 ('Python工具书',52) 16 ] 17 18 shopping_list =[] 19 salary = input('请输入您的工资>>') 20 if salary.isdigit(): # 判断输入是否为 数字 21 salary = int(salary) 22 while True: 23 for num,item in enumerate(product_list): 24 print(num,item) 25 26 user_choice = input('选择您要购买的商品编号>>') 27 if user_choice.isdigit(): 28 user_choice = int(user_choice) 29 if user_choice < len(product_list) and user_choice >=0: 30 p_item = product_list[user_choice] 31 if p_item[1] <= salary: 32 shopping_list.append(p_item) 33 salary-=p_item[1] 34 print('您购买了33[32;1m[%s]33[0m,当前账户余额为33[32;1m%s元33[0m'%(p_item[0],salary)) 35 else: 36 print('33[41;1m您余额只有[%s元],还买个毛线33[0m'% salary) 37 else: 38 print('33[41;1m商品编号不存在,请输入正确的商品编号33[0m') 39 elif user_choice == 'q': # 程序退出 40 print('-------您的购物清单如下----------') 41 for p in shopping_list: 42 print(p) 43 print('您当前33[31;1m余额33[0m还有33[31;1m[%s元]33[0m'% salary) 44 exit() 45 else: 46 print('输入有误,请重新输入')
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  • 原文地址:https://www.cnblogs.com/parsonbf/p/12661830.html
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