Question

我正在尝试编写一个程序，要求用户输入产品名称，价格和数量。从那里，所有信息将被添加到表（字典？）中。此外，必须为创建的所有新项目分配ID号。我对ID号段感到困惑。

items = {}

product = str(input("Enter the name of a product: "))
price = int(input("Enter a price: "))
quantity = int(input("Enter a quantity: "))

#Assign unique ID number.

我试图以下面的结果作为例子：

ID#70271, shoes. 7 available, at $77.00

Answer 1

您可以使用uuid4创建唯一ID

>>> from uuid import uuid4
>>> uuid4().clock_seq
7972L
>>> uuid4().clock_seq
11807L
>>> uuid4().clock_seq
15487L

Answer 2

items = {}
import hashlib
product = "dinosaur"
price = 10.99
quantity = 20
uid = hashlib.md5(product).hexdigest() #is one way but you probably don't
# need a hash if you just want simple number id's: a much easier way is 
otheruid = len(items) # just have the next item be the UID
items[otheruid] = (product, price, quantity)

Answer 3

您是否需要能够检索信息？您可能会考虑使用多个字典键，或者只想使用元组或列表。

您几乎肯定需要导入一些东西来创建ID，特别是如果它是随机的。以下是一些代码，可将该信息添加到已存在的已填充或空列表中。

def storesInfo(product,quantity,price,listInfo): #takes list as a variable
    import random
    ID = random.randrange(0,10000)
    listInfo.append([product,price,quantity,ID])
    return('ID%s, %s. %f available, at %f.'%(ID, product, quantity, price),listInfo)

def main():
    product = str(input("Enter the name of a product: "))
    price = int(input("Enter a price: "))
    quantity = int(input("Enter a quantity: "))
    listA = [[2983, 'socks',32,65.23],[9291,'gloves',98,29.00]]
    print(storesInfo(product,quantity,price,listA))

main()

Python：添加条目？

3 个答案: