How to add data in list below?

2024/11/16 11:49:10

i have a list :

List = [[['1','2'],['2','4']],[['1','4'],['4','8']],[['53','8'],['8','2'],['2','82']]]

That i want add reverse data to list

To be:

[[['1','2'],['2','4'],['2','1'],['4','2']],[['1','4'],['4','8'],['4','1'],['8','4']],[['53','8'],['8','2'],['2','82'],['8','53'],['2','8'],['82','2']]]

Answer

You can iterate over the list and extend it with the reversed elements:

List = [[['1','2'],['2','4']],[['1','4'],['4','8']],[['53','8'],['8','2'],['2','82']]]for sublist in List:sublist.extend([pair[::-1] for pair in sublist])

In the end, List will be:

[[['1', '2'], ['2', '4'], ['2', '1'], ['4', '2']],[['1', '4'], ['4', '8'], ['4', '1'], ['8', '4']],[['53', '8'], ['8', '2'], ['2', '82'], ['8', '53'], ['2', '8'], ['82', '2']]]

https://en.xdnf.cn/q/120331.html

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