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

shopping_list = []

product_list = [
    ("苹果",5800),
    ("华为",1800),
    ("魅族",2200),
    ("oppo",1900),
    ("vivo",1500),
    ("三星",800)
]

salary = input("Please Input Your salary: ")

if salary.isdigit():
    salary = int(salary)
    while True:
        for index,item in enumerate(product_list):
            print(index,item)
        user_choice = input("请输入商品编号： ")
        if user_choice.isdigit():
            user_choice = int(user_choice)
            if user_choice < len(product_list) and user_choice >= 0:
                p_item = product_list[user_choice]
                if p_item[1] <= salary:
                    shopping_list.append(p_item)
                    salary -= p_item[1]
                    print("added %s into shopping cart. Your current balance \033[31;1m%s\033[0m" % (p_item, salary))
                else:
                    print("你的余额为 %s 无法购买商品。" % (salary))

            else:
                print("无效的商品编号...")
        elif user_choice == "q":
            print("----以下为您选购的商品----")
            for p in shopping_list:
                print(p)
            print("你的余额为 %s" % (salary))
            exit(1)
        else:
            print("您输入的商品不存在！")
            exit(1)

else:
    print("Invliad Input....")

python Day05