Python programming #3; Variables ,Datatypes and Functions with a small example

Publié le: 03 janvier 2019
sur la chaîne: HIGH-TECHDROID

A variable is created the moment you first assign a value to it.
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)
Remember that variables are case-sensitive

Python data types are different in some aspects from other programming languages. It is simple to understand and easy to use. Because Python is interpreted programming language and Python interpreter can determine which type of data are storing, so no need to define the data type of memory location.

A function is a block of code which only runs when it is called.

You can pass data, known as parameters, into a function.

A function can return data as a result.

Creating a Function
Calling a Function

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