How to count the number of elements in a list in python

When using Python, the following scenarios usually occur:

For example, in the above list: 0 appears once , 1 appears 2 times, 2 appears 3 times, and 3 appears 2 times.

This article explains several methods for obtaining the number of occurrences of elements in Python.

There are many ways to get the number of occurrences of an element. Here I propose the following methods. In the following code, the parameters passed in are array = [1, 2, 3, 3, 2, 1 , 0, 2]

conuter() method

This method can quickly obtain the elements in the list The number of occurrences

count in the list, get the number of occurrences of each element

#Numpy fancy index , get the number of occurrences of each element

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