#!/usr/bin/env python
# -*- coding: utf-8 -*-

#如下是一个购物程序：
#先输入工资，显示商品列表，购买，quit退出，最后格式化输出所买的商品。
count = 0
while True: #做一个循环判断,如果输入的不是数字，基于提示，三次后退出
salary = input("input your salary:") #输入你的工资
if salary.isdigit(): #输入的工资必须是数字才能往下走
salary=int(salary) #转换为整数型
break
else:
print("Please input a number:")
count += 1
if count == 3:
exit()

goods_list = [["Iphone",5800],["Macbook",12800],["iMac",15000],["ApplePen",500],["IPod",1200]] #商品列表
shop_list = [] #购买的商品列表
msg = " Product List "
print(msg.center(30,"*"))
for i,ele in enumerate(goods_list): #遍历序列中的元素以及它们的下标
print(i,".",ele[0],ele[1])
while True:
choice = input("Which do you want(quit type \"quit\")>>>")
if choice.isdigit(): #判断选择的是否是数字
choice = int(choice) #转换为整数型
if choice <= len(goods_list)-1: #选择的数字必须小于列表长度-1，因为下标从0开始
if salary >= int(goods_list[choice][1]): #判断工资是否够
shop_list.append(goods_list[choice]) #够的话，把商品加入到shopList
salary -= goods_list[choice][1] #减去工资
print("You just buy a %s now you have %s RMB" % (goods_list[choice][0],salary))
else:
print("Not enough money")
else:
print("There is no such things")
elif choice == "quit":
print("Here is what you buy:") #这里的思路是，创建一个字典，把所买的商品格式化输出
total = 0
shop_dict={}
for item in shop_list:
things = item[0]
money = item[1]
total += int(money)
if things in shop_dict:
shop_dict[things][0] += 1
shop_dict[things][1] += money
else:
shop_dict[things]=[1,money]
for item in shop_dict.items():
print("%s %s个 共%s" % (item[0],item[1][0],item[1][1]))
print("一共花了:",total)
exit()
else:
print("Please input a number")
continue