Page 134 - ComputerGenius_V2.1_Class8
P. 134
Critical Thinking
Quest
1. Write the syntax of the for loop.
2. Write the syntax of the while loop.
3. Write the output of the following:
a. for num in range(-10, 0, 1):
print(num)
b. count = 0
while (count < 5):
count = count + 1
print("Orange Education")
Let's REFRESH
l In Python, the body of the ‘if’ statement is indicated by the indentation. Body starts with an indentation
and the first unindented marks the end.
l Python interprets non-zero values as True, while ‘None’ and 0 are interpreted as False.
l The ‘if..else’ statement evaluates the test expression and will execute the body only if the test
condition is True. If the condition is False, the body of ‘else’ is executed.
l The ‘elif’ is short for ‘else if’. It allows us to check for multiple expressions.
l The ‘For’ loop in Python is used to iterate over a sequence (list, tuple, string) or other iterable objects.
l The while loop in Python is used to iterate over a block of code as long as the test expression (condition)
is true.
Exercise
A. Tick ( ) the correct option.
1. Which of these is not a valid Python loop?
(i) for loop (ii) if loop
(iii) while loop (iv) None of these
132 Computer Genius (V2.1)-VIII

