Is python list ordered?

List, one of Python's basic data types, is very powerful in Python. List can contain different types of data objects, and it is an ordered collection.

All standard operation methods that can be used for sequences can also be used for lists, such as slicing, indexing, etc. Python’s list is Variable data type, which supports append, insert, modify, delete del and other operations. (Recommended learning: Python video tutorial)

You can understand the list in python as a sequence of arbitrary objects, just put the required parameter values ​​​​in square brackets [ ] Just inside.

Operate as follows:

 names = ['ada','amy','ella','sandy']

The list can contain objects of different types and also supports nesting:

a = ['a',567,['adc',4,],(1,2)]

This list contains strings and integers , tuple elements, and a list is also nested.

Modify the values ​​in the list

The list is ordered, and the value at a specific position can be modified through the python list subscript.

The following is an example of how to modify the list parameters:

>>>a = [1,9,9]
>>>a [0] = 9
>>>a
[9,9,9]

The modification operation of the list can also be regarded as the operation of reassigning a specific position.

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