#!/usr/bin/env python
# -*- coding: utf-8 -*-
shopping_list = [
(‘Iphone‘,5800),
(‘Bike‘,800),
(‘Book‘,45),
(‘Coffee‘,35),
(‘Solo 2 Beats‘,1590),
(‘MX4‘,1999),
]
#定义一个商品列表
budget = int(raw_input("please input your budget:").strip())
#输入预算
buy_list = []
#定义购物车列表
while True:
for i in shopping_list:
print shopping_list.index(i),i
#循环打印出商品的index和商品名称
choice = int(raw_input("please input your choice:").strip())
#输入选择的商品,strip()表示忽略空格
item_price = shopping_list[choice][1]
#输出选择商品的价格,这里把(‘xxx’,xxxx)当成两个元素,单独取第二个输出为价格
print item_price
#判断预算是否大于商品价格,如果大于就减去当前商品,打印输出已经购买的商品,和剩余的预算;否则提示重新输入
if budget >= item_price:
budget -= item_price
buy_list.append(shopping_list[choice])
print "Added \033[1;33m %s \033[0m into shopping list." % shopping_list[choice][0]
print "You just only have \033[1;32m %s \033[0m. \n" % budget
else:
print "Sorry, you can not afford to buy %s,try another!" %shopping_list[choice][0]
本文出自 “rabbit” 博客,请务必保留此出处http://xiajie.blog.51cto.com/6044823/1721079
原文地址:http://xiajie.blog.51cto.com/6044823/1721079