How does python get the subscript of an element in array

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In numpy, we can use array as a container for an array (or list).

Create an array list with numpy > import numpy > vector = numpy.array ([5, 10, 15 and 15]) > print (vector)

[5 10 15 20]

Use the where method of numpy to find a value under the array > a = numpy.where (vector==10) > print (a)

(array ([1], dtype=int64),)

The returned data is the corresponding subscript

The subscript is wrapped in a tuple and a list. We can easily take it out with a [0] [0]:

> print (a [0] [0])

one

Add: how does python get the subscript position of each element in the list

The first method for i in range (len (numbers)): print ('({0}, {1}) '.format (I, numbers [I])) the second method

Use the enumerate function

Numbers = [10,29,30,41] for index, value in enumerate (numbers): print (index, value) the third kind

It is also the most effective index built-in function.

List1 = [1 print 22 31 1print (f 2) # 8 "is all the contents of the article" how to get the subscript of elements in array ". 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!