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This article will explain in detail how to sort the list in Python. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

The list is the most commonly used Python data type and can appear as a comma-separated value in square brackets. The data items of a list can be of different types, a string, a numeric type, or even a list, tuple, which is an element as long as it is separated by a comma.

An example of a list

1. Access elements in the python list

To access an element directly through an index, the basic format for accessing a single element is:

List name [index value]; the basic format for accessing multiple elements is: list name [index cause start value: index end value]

The following is an example:

Elements in the access list

Slicing of 2.python list

Slicing operations are not list-specific. Ordered sequences in python support slicing, such as strings and tuples.

The basic format is:

List name [index start value: index termination value: step size]

Where the step size is 1 by default

Examples of slicing of the list and corresponding output

List2= ["a", "d", "lily", "hello", 1pr 6]-this is a list of sources

List3=list2 [:]-the index value before and after omitting is a copy of the source list to get a new list

List3list4=list2 [2:]-the index termination value is omitted, which refers to the position from the initial value caused by the index to the final value

List5=list2 [: 3]-the omitted line causes the starting value, which refers to the position from the starting point to the end of the index

List6=list2 [1:4:2]-refers to a list of index values 1 to 3 with a step size of 2

Sorting of 3.python lists

The basic formula is:

List name .sort ()-sort the list in ascending order

List name .sort (reverse = True)-sort the list in descending order

List name .reverse-reverses the list

Sorting of python list and comparison of results

List= [1,3,5,8,2,0,6]

List.sort () sorts the list in ascending order

List1= [1,5,11,0,4,21,9]

List1.sort (reverse=True) sorts the list in descending order

List2= [1,5,11,0,4,21,9]

List2.reverse () inverts the list

It is important to note that the above method directly modifies the original list. If you want to keep the source list, you can use the sorted () method.

Sorted () method

Addition of 4.Python list elements

There are mainly the following ways:

List name .append (elements to be added)-this method can add only one element, usually at the end

List name .insert (location of elements to be added, elements to be added)-this method can be added anywhere

List name .extend (list)-extends the original list with the new list

Addition of Python list elements

Deletion of 5.Python list elements

There are mainly the following ways:

List name .pop ()-deletes the last element

List name .remove (elements to be deleted)-this method can delete elements anywhere

List name .clear ()-deletes all elements of the list

Del list name-Delete the entire list

Del list name [cause start value: index termination value]-Delete some elements in the list

This is the end of this article on "how to achieve list sorting in Python". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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