Python Data structure

1. List, String, Tuple

List and string are similar, can use [index],tuple also can use [index],strign cannot change, we know, need to notice that the tuple is also immutable (immutable), such as:

A =[1,2,3]print#  1"test"print # T  = (11,22,33)print#  11

A[0]=5
Print (a)  #[5, 2, 3]

But if you try to modify s and t you will get an error.

T[0] =print'tuple' not support item assignment

Defines a tuple that contains one element, similar to a string, but with one more comma:

' Hello ' , Print  ='test'print(str)

The running code will have the following output:

('hello',) test

2.Sets

You can use {} or set () to create a sets, but if you want to create an empty sets you must use Set () instead of {} (because {} will create an empty dictionary type Dict)

Python Data structure