day_1 练习2

#!/usr/bin/env python
# -*- coding:utf-8 -*-
'''
b. 功能要求：
            v = 2000
            要求用户输入总资产，例如：2000
            显示商品列表，让用户根据序号选择商品，加入购物车
            购买，如果商品总额大于总资产，提示账户余额不足，
否则，购买成功。
            goods = [
                {"name": "电脑", "price": 1999},
                {"name": "鼠标", "price": 10},
                {"name": "游艇", "price": 20},
                {"name": "美女", "price": 998},
            ]            
            num = input('>>>') # 1
            num = int(num)
            goods[num]['price']
'''
v=2000
goods = [
                {"name": "电脑", "price": 1999},
                {"name": "鼠标", "price": 10},
                {"name": "游艇", "price": 20},
                {"name": "美女", "price": 998},
            ]
n=0
GMSP=[]
for i in goods:
    print (n,i)
    n+=1
while True:
    num = int(input("请输入您要购买商品所对应的序号:").strip())
    if v > goods[num]['price']:
        v -= goods[num]['price']
        print ("您消费了:",goods[num]['price'])
        GMSP.append(goods[num]['name'])
        print ("您已成功购买",goods[num]['name'])
        print ("您的余额是",v)
    else:
        print ("余额不足")
        break
print ("您今天所购买的商品有:",GMSP)
print ('欢迎下次光临')