列出仅在程序运行后才知道的名称 [英] Make a list with a name that is only known after the program runs

问题描述

我想列出一个列表，并命名为我在运行程序后才知道的名称:

I want to make a list and call it a name which I only know after I run the program:

例如:

#making shelfs
group_number = 1
group_name = 'group' + str(group_number)
print group_name

group_name将是:group1

group_name will be: group1

现在，我要创建一个名为group1的空列表.怎么做这样的事情?

Now I want to make an empty list called group1. How to do such a thing?

推荐答案

通常，您只需将其放入字典中即可.

Usually you just put this into a dictionary:

d = {group_name:[]}

现在，您可以通过字典访问列表.例如:

Now you have access to your list via the dictionary. e.g.:

d['group1'].append('Hello World!')

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另一种方法是修改globals()函数(它是字典)的结果.这绝对是一种不好的做法，应应避免，但是我将其包含在此处，因为了解有关您使用的工具的更多信息总是很高兴的:

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The alternative is to modify the result of the globals() function (which is a dictionary). This is definitely bad practice and should be avoided, but I include it here as it's always nice to know more about the tool you're working with:

globals()[group_name] = []
group1.append("Hello World!")

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