商品购买系统
需求：
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gz = int(raw_input('请输入您收入/月:'))
F = file('commodity.txt')
shop_list = []
product = F.readline()
products = product.split()
products_prices = F.readline()
prices = [int(i) for i in products_prices.split()]
min_prices = min(prices)
while True:
print '本商店提供如下商品：'
for p in products:
print p,'\t',prices[products.index(p)]
if gz < min_prices:
print '您剩余工资%d元不够买我们商店的任何东西，see you！'%gz
print '您的购物车里面有：',shop_list
break
else:
print '------------------------------'
shop = raw_input('请输入如想购买商品的名称：')
F_shop = shop.strip()
if F_shop in products:
shop_prices = prices[products.index(F_shop)]
print '您目前所剩工资：%d' %gz
print '您购买商品信息：',F_shop,'\t',shop_prices
if gz > shop_prices:
shop_list.append(F_shop)
gz = gz - shop_prices
print '消费后所剩工资:%d'%gz
else:
print '您想购买的商品价格超出您的工资，请尝试其他商品！'
else:
print '您输入的商品，本商店暂时无货！'
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commodity.txt文件内容Car iphone computer house coffee moon_cake Milk200000 4500 10300 2569415 36 56 13
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本文转自 xinsir999 51CTO博客，原文链接：http://blog.51cto.com/xinsir/1550186，如需转载请自行联系原作者