A GLANCE AT COMPUTER PROGRAMMING

REX JUNSHU WANG @ GIE8 23RD OCTOBER 2015 @ AUT

What is computer programming?

Human write code, which is commonly plain text, in programming language; and compile the code to binary format (sometimes); and finally execute it.

CODE:in plain textwritten by human (commonly)read and unstood by

computer

What is a programming language?

Human communicate with human in human languages, which include English, Chinese, Arabic, Maori, and many others.

Human teach computers how to work in programming languages, which include C, C++, C#, Java, Python, R, Go, and mand others.

Python

a programming language

don’t need the process of compile write in plain text and then execute

If you are using a MacBook (Pro/Air), you can start to practice, now!

Let’s play: “Hello, world” Download “Sublime Text 2” from

http://www.sublimetext.com

Install and open it

Input text like this

Save as “helloworld.py” into your home folder

Open “Terminal”

Execute the code

Branch: if … else ...

In Sublime, create a new file save as “randominteger.py” Input code like this:

In Terminal, execute it

Every time it executes, a random integer between 0 and 20 will be generated

Then logic will go into different branch

Loop: draw a triangle

In Sublime, create a new file Save as “drawtriangle.py” Input code like this:

In Terminal, execute it

More about Python

Python is basicly everywhere.

Python can be used for: Website server Scientific computing Handy tools Many others ….

Who use Python?

More about “Hello, world”

“Hello world” is the most simple computer programme.

Learning of a new programming language typically begins with the “Hello, world” programme in it. YOU JUST BEGAN!

If you want learn more about python: www.python.org

HAPPY JOURNEY

Interesting: Programming Language Logos

Q & A

THANKS