Summary of how to use list in python (picture and text)

This article brings you a summary (pictures and texts) of how to use list in Python. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

1. A list is an ordered collection in which elements can be added, modified, or deleted at any time.

Example: Listclassname = ['Jack', 'Tom', 'Mark']

## List can obtain elements according to the index, such as: ListclassName

##The list index starts from 0, and the last element index is len(listClassName)-1;

If you want to get the last element, in addition to calculating the index position, you can also use

-1

Do index and get the last element directly:

1.1 Get the number (length) of the list: Use the len() function to get the list The number of elements (elements are calculated starting from 1):

len(listClassName)

1.2 Add elements: Use the append() function, you can Add elements to the end of the list:

listClassName.append('Xiao Ming')

1.3 Insert elements: Use the insert() function to insert elements into the specified Position:

1.4 Replace element: Replace an element with another element and assign it directly to the corresponding index position:

1.5 The data types of the elements in the list can also be different:

1.6 The list elements can also be another list:

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