如何通过同时使用多个键来提取字典值 [英] How to extract dictionary values by using multiple keys at the same time

问题描述

我遇到了以下问题.

dict1 = {'a': 1, 'b': 2, 'c': 3, 'd': 4}

常规检索方法:dict1['a']->输出-> 1
预期方法:dict1['a', 'b']->输出-> [1, 2]

Normal retrieval method: dict1['a'] -> Output - > 1
expected method: dict1['a', 'b'] - > Output - > [1, 2]

我的要求是，通过上述预期方法中同时提供多个键，从字典中提取多个值.

My requirement is to extract multiple values from a dictionary by providing multiple keys at the same time as mentioned in the expected method above.

有办法吗?如果必须编辑内置的dict类方法，该怎么做?

Is there a way to do it? If I have to edit the built-in dict class methods, how do I do it?

推荐答案

您可以使用列表理解:[dict1[key] for key in ('a', 'b')]

You can use list comprehension : [dict1[key] for key in ('a', 'b')]

它等效于

output = []
for key in ('a', 'b'):
    output.append(dict1[key])

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