sum=0
a=input("请输入“饮料”或“酒”：")
if a=="饮料":
while True:
shop = { '雪碧':3, '红牛':5, '脉动':4}
print(shop)
a = input("输入Buy进入结算,继续购买请输入物品名称：")
if a == "雪碧":
a = int(shop["雪碧"])
sum += a
elif a == "红牛":
a = int(shop["红牛"])
sum += a
elif a == "脉动":
a = int(shop["脉动"])
sum += a
elif a == "Buy":
print(sum)
else:
print("输入有误！！！，请重新输入：")
elif a=="酒":
while True:
shop = {'青岛啤酒':6, '劲酒':15, '江小白':0.01}
print(shop)
a = input("输入Buy进入结算,继续购买请输入物品名称：")
if a == "青岛啤酒":
a = int(shop["青岛啤酒"])
sum += a
elif a == "劲酒":
a = int(shop["劲酒"])
sum += a
elif a == "江小白":
a = int(shop["江小白"])
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：")
