Python Sao operates the mouth of trump, the deceptive ghost!

preface The text and pictures of this article are from the Internet, only for learning and communication, not for any commercial purpose. The copyright belongs to the original author. If you have any questions, please contact us in time for handling. Author: pk Ge PS: if you need Python learning mater ...

Posted by dmikester1 on Wed, 17 Jun 2020 09:34:49 +0200

List built in method

list.append(obj)) Add a new object at the end of the list list.count(obj) Count the number of times an element appears in the list list.extend(list1) Append multiple values in another sequence at the end of the list (extend the original list with a new list) list.index(obj) Find the index position of th ...

Posted by wannasub on Mon, 15 Jun 2020 10:49:49 +0200

21 days Python from introduction to time Day1

Chapter 2 variables and simple data types variable Variable names can only contain letters, numbers and underscores. They can start with letters and underscores, but not numbers Variable names cannot contain spaces. You can use underscores to separate words python keywords and function names cannot be ...

Posted by NathanLedet on Sun, 14 Jun 2020 11:23:44 +0200

Chapter 5 of "Introduction to Flask": learning Flask Sqlalchemy is enough. Don't write too many

Chapter 5 of "Introduction to Flask": learning Flask Sqlalchemy is enough. Don't write too many According to my personal understanding, database is a tool to store data and the direct relationship between data and data. No matter the complexity or size of the data it stores, it has no ess ...

Posted by parse-error on Sun, 14 Jun 2020 05:53:41 +0200

Python Data Analysis of Pandas:Index Index Objects and Various Index Operations for Three Swordsmen

CSDN Course Recommendation: "Python Data Analysis and Mining", Lecturer Liu Shunxiang, Master of Statistics, Zhejiang University of Industry and Commerce, Data Analyst, once held the post of Data Analyst in the Data Department of the Imperial ...

Posted by vdubdriver on Sun, 14 Jun 2020 02:41:52 +0200

Make full use of Git to cancel and improve project quality (recruitment at the end of the article)

0x001 general An excellent front-end engineer must be an excellent engineer first; an excellent engineer must be responsible for every line of code he writes and every commit he submits. That said, I don't want to write a very large and comprehensive article, but I want to write some small things. 0x002 undo git add We know that to submit a com ...

Posted by kkessler on Sat, 13 Jun 2020 11:39:17 +0200

Image image and Container basic chapter

preface This is a basic article about image and container, although some of it is related to the article written in 18 years Enter the door of Docker and Kubernetes container world There are overlaps, but with my familiarity with containers in recent years, I would like to share some of my knowledge and serve as a technical foreshadowing for my ...

Posted by jchemie on Sat, 13 Jun 2020 09:16:31 +0200

Shell_04_Regular expression RE

Shell_04_Regular expression RE What is a regular expression Simply put, a regular expression is the way to process strings. It handles strings in units of behavior. Regular expressions, assisted by some special symbols, make it easy for users to "search/delete/replace" a particular string ...

Posted by geekette on Sat, 13 Jun 2020 03:06:51 +0200

The use and advancement of pygame

Use of pygame Pygame is a cross platform Python module designed for video games, including images and sounds. Based on SDL, real-time video game development is allowed without being bound by low-level languages (such as machine language and assembly language). Minimum game development framework impo ...

Posted by expert_21 on Fri, 12 Jun 2020 12:30:57 +0200

Xcu -- data visualization -- Experiment 2

Data visualization experiment 2 preface Through pandas in python, the experiment is completed with bar graph, bar graph and line graph. Title Requirements 1. "Tourism annual data. xls" and "tourism statistical data. csv" are tourism statistical data from 2009 to 2018, includ ...

Posted by shergar1983 on Fri, 12 Jun 2020 08:44:49 +0200