Control flow statements are programming constructs that dictate the order in which a program’s instructions or statements are executed. They control the flow of a program, determining which sections of code are executed under specific conditions or in a specified order. Mastering control flow statements in Python is crucial for writing efficient and readable code. Here’s a list of tips and techniques to help you navigate through control flow statements:
1. Understand the Basics:
- Know the basic control flow statements:
if
,else
, andelif
. - Understand the concept of indentation in Python for code blocks.
if condition1:
# code block executed if condition1 is True
elif condition2:
# code block executed if condition2 is True
else:
# code block executed if none of the conditions are True
# Basic control flow statements: if, else, and elif
# Example 1: Simple if-else statement
x = 10
if x > 0:
print("x is positive")
else:
print("x is non-positive")
# Example 2: if-elif-else statement
y = 0
if y > 0:
print("y is positive")
elif y < 0:
print("y is negative")
else:
print("y is zero")
# Example 3: Nested if statements
z = -5
if z > 0:
print("z is positive")
else:
if z <…