1.字典

"""在控制台循环录入商品信息(名称,单价)
    如果名称输入空字符串,停止录入,将所有信息逐行打印
"""
dict_info = {}

while True:
    name = input("请输入商品名称: ")

    if name == "":
        break
    prince = int(input("请输入单价: "))
    dict_info[name] = prince
for k,v in dict_info.items():
    print("{}商品的单价是{}".format(k,v))