Python Variables | Lecture-4 | In English | Python Course Zero to Hero

Publicado em: 16 Julho 2021
no canal de: Python Cosmos

Creating Variables

Variables are containers for storing data values.

Unlike other programming languages, Python has no command for declaring a variable.

A variable is created the moment you first assign a value to it.

Variables do not need to be declared with any particular type, and can even change type after they have been set.

String variables can be declared either by using single or double quotes:

Example

x = "John"
is the same as
x = 'John'

Variable Names
A variable can have a short name (like x and y) or a more descriptive name (age, carname, total_volume). Rules for Python variables:
A variable name must start with a letter or the underscore character
A variable name cannot start with a number
A variable name can only contain alpha-numeric characters and underscores (A-z, 0-9, and _ )
Variable names are case-sensitive (age, Age and AGE are three different variables)

Course lecture - 3 : Python Comments.

*Things we'll cover in this course:*

Python Introduction
Python Syntax
Python Comments
Python Variables
-Python - Variable Names
-Python Variables - Assign Multiple Values
-Python - Output Variables
-Python - Global Variables
-Python - Variable Exercises
Python Data Types
Python Numbers
Python Casting
Python Strings
-Python - Slicing Strings
-Python - Modify Strings
-Python - String Concatenation
-Python - Format - Strings
-Python - Escape Characters
-Python - String Methods
-Python - String Exercises
Python Booleans
Python Operators
Python Lists
-Python - Access List Items
-Python - Change List Items
-Python - Add List Items
-Python - Remove List Items
-Python - Loop Lists
-Python - List Comprehension
-Python - Sort Lists
-Python - Copy Lists
-Python - Join Lists
-Python - List Methods
-Python List Exercises
Python Tuples
-Python - Access Tuple Items
-Python - Update Tuples
-Python - Unpack Tuples
-Python - Loop Tuples
-Python - Join Tuples
-Python - Tuple Methods
-Python - Tuple Exercises
Python Sets
-Python - Access Set Items
-Python - Add Set Items
-Python - Remove Set Items
-Python - Loop Sets
-Python - Join Sets
-Python - Set Methods
-Python - Set Exercises
Python Dictionaries
-Python - Access Dictionary Items
-Python - Change Dictionary Items
-Python - Add Dictionary Items
-Python - Remove Dictionary Items
-Python - Loop Dictionaries
-Python - Copy Dictionaries
-Python - Nested Dictionaries
-Python Dictionary Methods
-Python Dictionary Exercises
Python If ... Else
Python While Loops
Python For Loops
Python Functions
Python Lambda
Python Arrays
Python Classes and Objects
Python Inheritance
Python Iterators
Python Scope
Python Modules
Python Datetime
Python Math
Python JSON
Python RegEx
Python PIP
Python Try Except
Python User Input
Python String Formatting.

Nesta página do site você pode assistir ao vídeo on-line Python Variables | Lecture-4 | In English | Python Course Zero to Hero duração hora minuto segundo em boa qualidade , que foi baixado pelo usuário Python Cosmos 16 Julho 2021, compartilhe o link com seus amigos e conhecidos, no youtube este vídeo já foi visto 10 vezes e gostou 1 espectadores. Boa visualização!