标签：python
#!/usr/bin/env python #-*-coding=utf-8 -*- #AUTHOR:duwentao product_list = [ ('Iphone',5000), ('book',10), ('watch',10600), ('bike',800), ] shopping_list=[] #判断工资是否为数字 salary = input("请输入你的工资：") if salary.isdigit(): salary = int(salary) while True: for item in product_list: print (product_list.index(item),item) user_choice = input('请输入你要购买的商品号：') if user_choice.isdigit(): user_choice = int(user_choice) if user_choice >= 0 and user_choice < len(product_list): p_item = product_list[user_choice] if p_item[1] > salary: print('余额不足') else: shopping_list.append(item) salary -= p_item[1] print('你已经购买了%s,您的余额为%s' %(item,salary)) else: print('你购买的商品不存在') elif user_choice == 'q': print ('----shopping list----') for p in shopping_list: print(p) print('你的余额为',salary) exit() else: print ("输入有误，请重新编号") print ("正在退出") exit()标签：python
原文地址：http://blog.51cto.com/tdcqvip/2053893
