pyhton programming - iii

1. DA2001 - Python
Programming
H. M. Samadhi Chathuranga Rathnayake

2. Flow Control Structures
• Sequential Execution:
• The default flow of execution where statements are executed one after another in the order they
appear.
• Conditional Statements (Decision Making):
• Used to execute different blocks of code based on conditions.
• Looping Structures (Iteration):
• Used to repeat a block of code multiple times.
• Jump Statements (Control Flow Alteration):
• Used to change the normal sequence of execution.

3. Conditions and Branching
if Criteria:
Do
something
if
Criteria:
Do
something
else:
Do
something
if Criteria:
Do
something
elif Criteria:
Do
something
elif Criteria:
Do
something
else:
Do

4. For Loops
for iteration
in Array:
Do
something

5. For Loops
• Break keyword breaks the entire loop when a condition is satisfied.
• Continue keyword skips the iteration when a condition is satisfied.

6. While Loops

7. Python Functions
• Python functions are repeated blocks which will be used in several places in a program.
• Python functions can be created with arguments or without arguments.
• Python functions can be created with return values or without return values.