Basic HTML Version

|  | Table of Contents |  | View Full Version

Page 146 - 2620_Birla Open Mind C-6
P. 146

    Python has many data types built-in by default,  some of them are -
                       int: Positive or negative whole numbers (without any fractions). Example: a = 3

                       float: Any real number in which a fraction is denoted by a decimal symbol. Example: a = 3.5
                       string: A string value is a collection of one or more characters put in single or double quotes. Example:
                     a="hello"

                       COMMENTS IN PYTHON

                  Comments in Python can be used to explain parts of the code and make it easy to understand. It can
                  also be used to hide the code as well. Comments enable us to understand the way a program works.
                  In python, any statement starting with # symbol is known as a comment. Python does not execute
                  comments. Comments are not a part of the program, but they do enhance the interactivity of the
                  program and make it readable. Python supports two types of comments: Single line comment and
                  Multiline comment.
                  Single-line Comment

                  In case, a user wants to specify a single-line comment, then comment must start with the symbol #.

                  Example:
                       Program:                                        Output:

                       # printing a string                             Hello World

                       print("Hello world")

                  Multiple-line Comment

                  Python does not have a syntax for multiline comments. To add a multiple-line comment, you could
                  insert a # for each line.
                  Example:

                          Program :                                    Output :

                          # printing a string                          Rakesh
                          #print five names                            Rachna

                          print("Rakesh")                              Sambhav
                          print("Rachna")                              Akshat
                          print("Sambhav")
                                                                       Tushar
                          print("Akshat")
                          print("Tushar")
                  However, the text written inside triple quotes (''' or ''"") is also considered as comment. You can use the
                  triple quotes to write multiline comments. For example:

                                   '''This is                          """This is
                                      Multiline               OR          Multiline

                                      Comment'''                          Comment"""

                      144  Premium Edition-VI

| 141 142 143 144 145 146 147 148 149 150 151 |