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preface   in the previous article, we completed the display and processing of the news data on the home page, and also made a simple optimization of the UI. Now it looks higher than before, but we still have to continue to optimize. text    text is to optimize the network. We have to consider that there is no network when ...

Author: Steven Copyright notice: the copyright belongs to the author. For commercial reprint, please contact the author for authorization. For non-commercial reprint, please indicate the source   preface This paper introduces a classical algorithm backtracking method, which can be used as a solution to the maze problem. The following is ...

Project description The existing systems are two computers of Windows 10, one of which is used as a server and the other as a client. There is a folder pics in the server, which contains 10 pictures, as shown in the following figure: This paper aims to use the Socket library in Python to transfer the pictures in the server to the client. ...

Reprint: https://blog.csdn.net/lvyibin890/article/details/82193900 PCB (progress control block), process control block. Let's not discuss what PCB is. In fact, the concept of process itself is a concept that is difficult to understand. When an executable program is executed by the system, it becomes a process. So what is there in this process, ...

1. Concept The so-called dependency injection (DI) actually means that when a bean instance references another bean instance, the spring container helps us create a dependent bean instance and inject (pass) it into another bean. Dependency: the creation of a Bean object depends on the container, and the Bean object depends on resourcesInj ...

Look at the effect first (the source code is at the end): The video effect is as follows, with sound effect Station B: A fan shared this effect with me. I thought it was very interesting, and then studied it. The specific implementation is as follows (there may be many codes, but they are relatively simple. Come on): Implementation process ...

Generally, the form page needs to fill in the mobile phone number. To verify whether the mobile phone number entered by the user is correct, we need to use the regular expression to match the mobile phone number segment. If it is in the operator number segment, the number is correct. Therefore, it is necessary to know the latest segment number ...

Life is meaningless if you don't write code to pretend. It's all 2020. If you're doing front-end development and you don't even use canvas, what do you want to do? Following the author, let's see what canvas is, what it can be used for, and which products are made by canvas. Introduction to Canvas 1.canvas is a new tag for html5, which is a ...

Video link: https://www.bilibili.com/video/BV1VP4y1c7j7?p=48&spm_id_from=pageDriver preparation (1) New maven project See the following steps for details: https://editor.csdn.net/md/?articleId=123185097 (2) Create two forms in sql: t_emp,t_dept t_dept form: t_emp form: Add a did to connect with the primary key of the ...

1 Nginx server overview Nginx is a kind of server software. Its main and basic function is that it can be combined with server hardware (computer), so that programmers can publish programs on nginx server, so that thousands of users can browse. In addition, Nginx is also a high-performance HTTP and reverse proxy server, as well as a proxy mai ...