📝 Overview
Conditional statements allow your Python programs to make decisions. You’ll learn how to use if
, elif
, and else
to control the flow of your code based on conditions.
🎯 What You’ll Learn
-
How to use
if
,elif
, andelse
statements -
How conditions are evaluated
-
Common examples like grade checking or login simulation
❓ 1. What Are Conditional Statements?
Conditional statements let your program choose what to do based on conditions.
📌 2. The Basic Structure
Python uses indentation (spacing) to group blocks of code!
🧪 Example 1: Simple Age Checker
🔁 3. The elif
Keyword
You can test multiple conditions using elif
(short for else if):
⚠️ 4. Comparison & Logical Operators
Operator | Meaning |
---|---|
== |
Equal to |
!= |
Not equal |
> / < |
Greater/Less than |
>= / <= |
Greater/Less or equal |
You can combine conditions:
🧠 Practice Exercise
Write a Python program that:
-
Asks the user for a number
-
Prints if the number is positive, negative, or zero
✅ Summary
-
if
,elif
, andelse
are used to make decisions -
Conditions must be True to run the associated block
-
Python uses indentation, not brackets
{}
⏭️ Next Lesson Preview
→ Loops in Python (for
and while
)