Python Tour: Data type

A primer 1 What is data?

　　x=10,10 is the data we want to store.

2 Why data is divided into different types

Data is used to represent States, and different States should be represented by different types of data.

3 Data Types

Numbers (shaping, long-shaped, floating-point, plural)

String

BYTE string: Describes the byte bytes type when introducing character encoding

List

Meta-group

Dictionary

Collection

4 Expand Data Type learning by following several points

　　

# A: Basic use 1  use 2 definition way 3 common operation + built-in method # Two: summary of the type 1 save a value or save multiple values    Only one value can be stored    for multiple values, and the value can be what type 2 ordered or unordered 3 variable or immutable    !!! Variable: The value changes, the ID does not change. Variable = not hash    !!! Immutable: The value changes, and the ID is changed. Immutable = = can be hashed

Python Tour: Data type