for people who know nothing about computer programming

1. A GLANCE AT
COMPUTER
PROGRAMMING
REX JUNSHU WANG @ GIE8
23RD OCTOBER 2015 @ AUT

4. 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 text
written by human (commonly)
read and unstood by computer

5. 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.

6. 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!

7. 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

8. 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

9. Loop: draw a triangle
 In Sublime, create a new file
 Save as “drawtriangle.py”
 Input code like this:
 In Terminal, execute it

10. More about Python
 Python is basicly everywhere.
 Python can be used for:
 Website server
 Scientific computing
 Handy tools
 Many others ….
 Who use Python?

11. 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

12. Interesting: Programming Language Logos

13. Q & A
THANKS