How to realize the Transformation of list structure by python

This article mainly shows you the "python how to achieve the transformation of the list structure", the content is easy to understand, clear, hope to help you solve your doubts, the following let the editor lead you to study and learn "python how to achieve the transformation of the list structure" this article.

The transformation of the list structure mainly includes converting the list into tuples, collections, strings, and dictionaries:

List1 = ["a", "b", "c", "d", "c"] # list is converted to tuple tuple1 = tuple (list1) # ('axiom,' baked, 'cased,' dashed,'c') # list is converted to collection set1 = set (list1) # {'ajar,' baked,'c' The'd'} # list is converted to the string str1 = ". Join (list1) # 'abcdc'# list is converted to a dictionary Element is key The number of times is valuefrom collections import Counter, defaultdictdict1 = Counter (list1) # Counter ({'aqure: 1, 'cations: 2,' dudes: 1}) # or dict2 = defaultdict (int) for i in list1: dict2 [I] + = 1dict2 # defaultdict (int, {'averse: 1,' baked: 1, 'cations: 2,' dudes: 1}) these are all the contents of the article "how to transform the list structure of python" Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!