if-elif-else in python

Useful for if-else kind of conditional execution when we have more than two related conditional statements.

Syntax :

if expression 1:
   # Executes when the boolean expression 1 is true
elif expression 2:
   # Executes when the boolean expression 2 is true
elif expression 3:
   # Executes when the boolean expression 3 is true
   # executes when the none of the above condition is true.

Block Diagram :



WAP to check whether a number is positive, negative or zero.
n = 1

# Try these for these as well:
# n = 0
# n = -4.5

if n > 0:
    print("Positive number")
elif n == 0:
    print("Negative number")
Positive number

Next topic is Nested-If in python


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