#简单的电商购物程序

sum=0
a=input("请输入“手机”或“食物”：")
if a=="手机":
    while True:
        shop = { '华为Note10':2899,  'oppor17':2199,  '小米9':2999}
        print(shop)
        a = input("输入Buy进入结算,继续购买请输入物品名称：")
        if a == "华为Note10":
            a = int(shop["华为Note10"])
            sum += a
        elif a == "oppor17":
            a = int(shop["oppor17"])
            sum += a
        elif a == "小米9":
            a = int(shop["小米9"])
            sum += a
        elif a == "Buy":
            print(sum)
        else:
            print("输入有误！！！，请重新输入：")
elif a=="食物":
    while True:
        shop = {'苹果':15,  '葡萄':12, '水蜜桃':14}
        print(shop)
        a = input("输入Buy进入结算,继续购买请输入物品名称：")
        if a == "苹果":
            a = int(shop["苹果"])
            sum += a
        elif a == "葡萄":
            a = int(shop["葡萄"])
            sum += a
        elif a == "水蜜桃":
            a = int(shop["水蜜桃"])
            sum += a
        elif a == "Buy":
            print(sum)
        else:
            print("输入有误！！！，请重新输入：")
else:
    print ("输入有误！！！，请重新输入：")