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This article mainly introduces python how to achieve two list intersection, union, difference, the corresponding elements of the relevant knowledge, detailed and easy to understand, simple and fast operation, has a certain reference value, I believe that after reading this python how to achieve two list intersection, union, difference, the corresponding elements of the article will have a harvest, let's take a look at it.

List the intersection, union and non-a = [1,3,5,7] b = [3,5] # find the intersection of two sets (using set) intersection_list = list (set (a) .intersection (set (b)) print ("intersection:", intersection_list) # Union (using set) union_list = list (set (a) .union (set (b)) print ("Union:" Union_list) # non-differ_list = list (set (a) .difference (set (b)) print ("remove b residual values in a", differ_list) intersection: [3,5] Union: [1,3,5,7] a remove b residual values [1,7]

Note:

The set method is used above, so you need to list [set (a)] to generate a new list

Otherwise, the operation of the type 'set',set method can be used for list,np.arrary

Np.mat does not apply

List corresponding position element addition and subtraction import numpy as npa = [1,3,5] b = [2,2,2] # method 1: a+bd=np.array (a) + np.array (b) d=list (d) print ("aquib:", d) # method 2: aqumbc = [a [I] + b [I] for i in range (len (a)] print ("aquib:", c) # aLim b merge print ("Aline b merge:", ahumb) aqumb: [3, 5, 7] aqumb: [3 5, 7] A python b merge: [1, 3, 5, 2, 2, 2] this is the end of the article on "how to realize the intersection, union, difference, addition and subtraction of two lists of two lists" Thank you for reading! I believe that everyone has a certain understanding of the knowledge of "how to achieve the intersection of two lists, union, difference, and the addition and subtraction of corresponding elements in python". If you want to learn more knowledge, you are welcome to follow the industry information channel.

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