Python Session # 4 By: Saeed Haratian Spring 2016 Outlines - - PowerPoint PPT Presentation

ميـــحرلا نحنحنرلا للوللوا مــسب

Fundamentals of Programming

Python

Session # 4

By: Saeed Haratian Spring 2016

Outlines

 turtle Module  The for Loop  turtle methods and tricks  Functions

turtle Module

 Screen

 mainloop  bgcolor  title

 Turtle

 forward  left  color  pensize

The for Loop

for i in [0,1,2,3]: alex.forward(50) alex.left(90) for i in range(4): alex.forward(50) alex.left(90)

The for Loop …

for c in ["yellow", "red", "purple", "blue"]: alex.color(c) alex.forward(50) alex.left(90) clrs = ["yellow", "red", "purple", "blue"] for c in clrs: alex.color(c) alex.forward(50) alex.left(90)

more turtle methods and tricks

 Turtle

 backward  right  penup  pendown  speed  shape  stamp

Functions

 Syntax :

def NAME( PARAMETERS ): STATEMENTS

 Some Functions Require Parameter like abs, pow, max  Fruitful Function  Void Function

Example : Compound Interest

Function Variables

 create a local variable inside a function  only exists inside the function  cannot use it outside