标签:每天一段python
创建一个商品页面,要求
1、显示商品名称和价格对应关系
2、获取用户工资水平
3、提供用户选择购买商品功能
4、用户购买完商品,显示用户账号余额
5、提示用户是否继续购买
#!/usr/bin/env python //程序开始 #File: list.py #Date: 2016-01-13 import sys //插入模块,方便调用函数 Goods = [‘Iphone6‘,‘QueCao‘,‘LV‘,‘Car‘] //定义商品和价格列表内容 Prices = [5200,80,750,30000] lists = [] //定义空列表,类似购物车 wide = 50 title = ‘shoplist‘ half = (50 - len(title) - 2) // 2 //打印标题使用的变量 while True: //异常处理,要求输入工资必须是整数 try: wage = int(raw_input("Hello, please input your wages: ")) break except ValueError: print "Please input a number, not string." while True: print "Look the shoplist, please input what you want:" print ‘=‘ * 50 print ‘*‘ * half + ‘ ‘ + title + ‘ ‘ + ‘*‘ * half print ‘%-25s%25s‘ %(‘Goods‘,‘Prices‘) print ‘-‘ * 50 for p in Goods: print "%-25s%25s" %(p,Prices[Goods.index(p)]) print ‘=‘ * 50 //显示菜单内容 shop = raw_input("Please input one item to buy:") .strip() if shop == ‘quit‘: //退出选项 print "You have bought these things: %s" % lists sys.exit() elif shop in Goods: //商品在列表中时 pay = Prices[Goods.index(shop)] //取出价格 print "%s, %d" %(shop,Prices[Goods.index(shop)]) if wage > pay: //当工资大于价格时 wage -= pay //购买后的余额 lists.append(shop) //将购买商品添加到空列表 print "OK, %s put in list. Your wage now left: %d" % (shop,wage) else: if wage < min(Prices): //工资大于最小价格 print "Your money can‘t pay for anything. You have bought these things: %s" % lists sys.exit() //退出页面 else: print "Sorry, this %s you can‘t put it, please look other!" % shop else: print "Your choice not in Goods!" break
注:python2.7,练习使用!
本文出自 “经验来自痛苦” 博客,谢绝转载!
标签:每天一段python
原文地址:http://strike.blog.51cto.com/10311680/1734748