Python: annotation, python Annotation

Python: annotation, python Annotation

What is annotation?

Logout: not executed

Code explanation: Some people are used to putting the code explanation on the edge. We suggest putting it on top.

1) A single line comment starts #

#Requirement 12: enter a positive integer n on the keyboard, find the sum of n and its reverse order, and output an example: 123 Reverse Order 321 output 123 + 321 =?

Uncomment a single row: Ctrl +/

 

2) Multi-line comments tell you the role of this module for better readability; you can use multiple # numbers, as well as ''' and """:

For example:

"""

#Requirement 12: enter a positive integer n on the keyboard, find the sum of n and its reverse order, and output an example: 123 Reverse Order 321 output 123 + 321 =?

Num = input ("Enter a number :")

New_num = ""

I = len (num)

Whilei> = 1:

New_num + = num [I-1]

I-= 1

Print ("% d + % d = % d" % (int (num), int (new_num), int (num) + int (new_num )))

"""

Unregister multiple lines, select multiple lines of code, and then press Ctrl +/to cancel multiple lines.

 

3) Other

#-*-Coding: UTF-8-*-indicates the encoding used.

#! /Usr/bin/python3 code written in Linux, not required for windows

#! /D:/python/python.exe code written in Windows.