If Statement

A selection control statement is a control statement providing selective execution of instructions. A selection control structure is a given set of instructions and the selection control statement(s) controlling their execution.

If Statement

An if statement is a selection control statement based on the value of a given Boolean expression. if statements may omit the “else” part.

Example 1:

check if number is greater than 0

number = 10
if number > 0:
print('Positive number') #Output- Positive number

Example 2:

number = -5
if number > 0:
    print('Positive number')
else:
    print('Negative number') #Output- Negative number