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        如何从元组列表中提取第 n 个元素

        How to extract the n-th elements from a list of tuples(如何从元组列表中提取第 n 个元素)

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                  本文介绍了如何从元组列表中提取第 n 个元素的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着跟版网的小编来一起学习吧!

                  问题描述

                  我正在尝试从元组列表中获取第 n 个元素.

                  I'm trying to obtain the n-th elements from a list of tuples.

                  我有类似的东西:

                  elements = [(1,1,1),(2,3,7),(3,5,10)]
                  

                  我希望只将每个元组的第二个元素提取到一个列表中:

                  I wish to extract only the second elements of each tuple into a list:

                  seconds = [1, 3, 5]
                  

                  我知道这可以通过 for 循环来完成,但我想知道是否还有其他方法,因为我有数千个元组.

                  I know that it could be done with a for loop but I wanted to know if there's another way since I have thousands of tuples.

                  推荐答案

                  n = 1 # N. . .
                  [x[n] for x in elements]
                  

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