Python obtains the intersection, union, and difference sets of two arrays.

Python obtains the intersection, union, and difference sets of two arrays.

This example describes how to obtain the intersection, union, and difference sets of two arrays in python. Share it with you for your reference. The details are as follows:

1. Get the intersection of two lists

# Method 1: a = [2, 3, 4, 5] B = [2, 5, 8] tmp = [val for val in a if val in B] print tmp # [2, 5] # method 2 print list (set (). intersection (set (B )))

2. Obtain the union of two lists

Print list (set (a). union (set (B )))

3. Get the difference set of two lists

Print list (set (B). difference (set (a) # values in B but not in

Through the above method, you can process the intersection, union, and difference sets of python list.

I hope this article will help you with Python programming.