Python Set Collection

Source: Internet
Author: User

Python set, which is a set of unordered, non-repeating elements

Old_dict = {"#1": 8, "#2": 4, "#4": 2,}new_dict = {"#1": 4, "#2": 2, "#3": 2,}

Old_dict.add is the element to be passed in as an entire add to the collection

Old_dict.update is the splitting of the element to be passed in as an individual into the collection

Old_dict.remove Collection Delete

Old_dict.clear Delete all

New_set.difference (Old_set), with New_set as a reference, lists the different

Python Set Collection

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