Page 172 - AI Ver 3.0 Class 11
P. 172
The format() method in Python is used to print the values in the specified format and insert them into a string's
placeholders, which are defined using curly brackets {}. The detailed explanation along with examples demonstrating
how to use the format() method with integers, strings, and decimals. For float, two decimal places with .2f is used. The
syntax of the format () is as follows:
string.format(value1, value2, ...)
Program 2: To demonstrate the use of format()
name = input("Enter Name: ")
age = int(input("Enter Age: "))
percentage=float(input("Enter Your Percentage in Previous Class: "))
print("My name is {}.".format(name))
print("I am {} years old.".format(age))
print("My percentage is {:.2f}".format(percentage))
Output:
Enter Name: Yash
Enter Age: 26
Enter Your Percentage in Previous Class: 86.5
My name is Yash.
I am 26 years old.
My percentage is 86.50
Comments in Python
In Python, comments are used to annotate code with explanations, documentation, or notes. Comments are ignored
by the Python interpreter during execution and are solely for human readers. Python supports two types of comments:
• • Single line comments: Single line comments start with the hash character # and continue until the end of the line.
Anything following the # on that line is considered a comment and is ignored by the interpreter.
Program 3: To demonstrate the use of single line comment
# This is a single line comment
print("Hello, world!") # This is another single line comment
Output:
Hello, world!
• • Multiline comments: Python does not have a built-in syntax for multiline comments like some other languages.
However, multiline strings enclosed within triple quotes (‘‘‘ or “””) are often used for this purpose. Although these are
technically strings and not comments, they serve the purpose of commenting out multiple lines of code.
Program 4: To demonstrate the use of multiline comments
'''
This program demonstrates basic arithmetic operations without using functions.
It performs addition and subtraction of two numbers.
'''
# Addition
a = 10
b = 5
170 Touchpad Artificial Intelligence (Ver. 3.0)-XI

