Less than 200 lines of code, I wrote a class roll call system in python. Haven't you panicked yet?

Hello, everyone. I saw such a short video on the subway today. I wonder if I can write a similar class roll call program. At the end of the year, of course, this program can also be used for lucky draw. Now let's start practice! Like to remember to like, collect and pay attention. preparation 1,Tkinter Tkinter is the built-in TK GUI tool ...

Posted by fesan on Sat, 12 Feb 2022 03:46:30 +0100

Android Development: realize sliding exit Fragment + Activity two in one

prefaceCan you add a sideslip return when the sideslip menu is not included, and finish the current Fragment?Today, we have completed this work and made it into a separate SwipeBackFragment library and fragment SwipeBack extension librarycharacteristic: 1. Swipebackfragment, swipebackactivity two in one: when the number of fragments in the Act ...

Posted by sean14592 on Sat, 12 Feb 2022 03:31:36 +0100

Analyze the implementation principle of thread pool (pooling Technology) from the source code

Thread pool is a very important knowledge point and a typical application of pooling technology. I believe many people have the experience of using thread pool, but do you know the implementation principle of thread pool? In this article, we will explore the source code of thread pool. Origin of thread pool Background: with the upgradi ...

Posted by digitalhuman on Sat, 12 Feb 2022 02:43:50 +0100

The opening ceremony of the Winter Olympics amazed the world. Baidu search index + word cloud map for nearly 90 days

1, Introduction In actual business, we may use crawlers to obtain historical data of Baidu search index according to keywords, and then conduct corresponding data analysis. Baidu Index, experience the beauty of big data. However, the difficulties in obtaining data related to Baidu Index are as follows: It is not a static web page, and the ...

Posted by LiamS94 on Sat, 12 Feb 2022 02:14:43 +0100

There are three most common ways for python to parse XML?

XML (eXtensible Markup Language) refers to eXtensible Markup Language, which is designed to transmit and store data. It has increasingly become the core of many new technologies and has different applications in different fields. It is the inevitable product of the development of web to a certain stage. It not only has the core characteristics ...

Posted by westair on Fri, 11 Feb 2022 03:05:52 +0100

android development classic actual combat! Remember to regard each interview as experience accumulation, I will collect it for respect first

With the development of the Internet, the public has more understanding of the profession of programmer. In addition to high salary, there is too much pressure, black and white reversal, irregular work and rest and so on, which are also things that a programmer must experience. Most programmers are quiet and steady. If they have any question ...

Posted by CyberShot on Fri, 11 Feb 2022 00:28:09 +0100

It is said that you can master Spring Boot integration, timed tasks and asynchronous calls in ten minutes?

1. Scheduled tasks In project development, we often need timed tasks to help us do some content, such as sending SMS / station information regularly, data summary and statistics, business monitoring, etc., so we need to use our timed tasks. It is very simple to write timed tasks in Spring Boot. The following is an example of how to create time ...

Posted by scialom on Fri, 11 Feb 2022 00:07:07 +0100

Face recognition with Python "including source code"

Python can detect and recognize your face from images or videos. Face detection and recognition is one of the research hotspots in the field of computer vision. The applications of face recognition include face unlocking, security protection, etc. doctors and medical staff use face recognition to obtain medical records and medical history a ...

Posted by ina on Thu, 10 Feb 2022 16:14:52 +0100

Five years after graduation, with an annual salary of one million, I have mastered the simplest and rudimentary methods of getting started with java

hello everyone! I am an old ape. I love technology. I have been in the Java industry for 7 years and am on the way to learn and share every day! thread 1. Introduction As we all know, multithreading brings us better resource utilization and better program response, so I won't elaborate on its introduction. You can search by yourself. I'm ma ...

Posted by livvylove on Thu, 10 Feb 2022 11:27:18 +0100

The most complete summary of JDK new features in history, covering jdk8 to jdk15!

preface In this article, I will describe the most important and developer friendly features of Java since version 8. Why do you have such an idea? On the Web, you can find many articles containing a list of new features for each java version. However, due to the lack of articles, it is not possible to briefly outline the most important changes ...

Posted by GundamSV7 on Thu, 10 Feb 2022 10:31:44 +0100