Using matplotlib to draw line graph

matplotlib is a module of python, which is used to draw various graphs. Today, I will introduce the drawing of line graph. Let's start with a simple example: from matplotlib import pyplot as plt x=range(4,26,2) y=[32,43,21,54,32,3,21,32,21,32,43] plt.plot(x,y) plt.show() The above lines of code can dr ...

Posted by KDesigns on Fri, 19 Jun 2020 11:15:53 +0200

The measurement of the complexity of sorting algorithm

1, Experiment Name: complexity measurement of sorting algorithm 2, Master the algorithm principle of selection sort, bubble sort, merge sort, fast sort and insert sort. 2. 2. Master the empirical analysis methods of time efficiency of different sorting algorithms, and verify the consistency of theor ...

Posted by luanne on Sun, 14 Jun 2020 04:59:15 +0200

Check if the user is using IE

This article is translated from: Check if user is using IE I am calling a function like the one below by clicking on div s with a certain class. Is there a way I can check when starting the function if a user is using Internet Explorer and abort / cancel it if they are using other browsers so that ...

Posted by munky334 on Sun, 14 Jun 2020 04:15:45 +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

Social security card information reading

In recent years, with the popularization and development of medical intelligent self-service terminal, the unattended self-service terminal realizes the patient's independent appointment, registration, report query and other services. It is not only convenient for patients to see a doctor, but also i ...

Posted by daftdog on Fri, 12 Jun 2020 12:29:19 +0200

Java uses RXTX for serial port communication

About RXTX RXTX is an open source java class library that provides serial and parallel port communication. The files published by this project follow LGPL protocol. RXTX project provides compatibility under windows, Linux, Mac OS X, and Solaris Operating Systems javax.comm The implementation of the ...

Posted by nightowl on Fri, 12 Jun 2020 11:01:05 +0200

GStreamer official introductory course 5: integrating GStreamer with your graphical interface

This tutorial demonstrates how to integrate GStreamer into a graphical user interface (GUI) toolkit like GTK +. Basically, GStreamer is responsible for media playback, while the GUI toolkit handles user interaction. The most interesting part is that the two libraries must interact: instruct GStreamer to ...

Posted by kishore_marti on Fri, 12 Jun 2020 10:19:34 +0200

Python crawler example: News total crawling

Python crawler example: News total crawling preface analysis Web page parsing Stock data source Proxy IP code implementation summary preface Some time ago, due to the needs of tasks, it was necessary to climb the number of news of Shanghai Stock Exchange 50 index component stocks on certain da ...

Posted by HavokDelta6 on Thu, 11 Jun 2020 07:10:42 +0200

Asyncpy use documentation

1 create project Install the required environment python version needs > = 3.6 Installation command: pip install asyncpy After the installation is complete, you can start creating a crawler project. Create project command: asyncpy genspider demo Create a project called demo. After the creation is successful, open the project file. The projec ...

Posted by xnor82 on Thu, 11 Jun 2020 05:39:52 +0200

Kubernetes: Build a Windows version of Kubernetes based on WSL2 and Kind or Minikube

The original was published in Chinese Community of kubernetes , an original translation for the author, Original Address More kubernetes articles, please pay more attention Chinese Community of kubernetes Catalog Why use Kubernetes on Windows? Prerequisite WSL2: Combined with Ubuntu [Optional ...

Posted by shantred on Thu, 11 Jun 2020 03:17:10 +0200