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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11313

Course Introduction："Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.

Shangxuetang MySQL video tutorial

Course Advanced 17627

Course Introduction："Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.

Band of Brothers front-end example display video tutorial

Course Advanced 11330

Course Introduction："Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.

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Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't work. Below is the code snippet of the server database initialization connector in the application fromfastapiimportFastAPIimportmysql.connectorapp

2023-09-05 11:18:47

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactName. I think this might be a nested query. Nested queries run fine in SQLServer, but don't know how to implement it in MySQL. Limit query: Select*fromcustomerslimit

2023-09-05 14:46:42

CSS Grid: Create new row when child content overflows column width

I have a two column layout based on CSS grid. When the content of the second column exceeds 1fr I want to create a new row. As it currently stands, the content simply overflows the column. One requirement of this layout is that the items in the right menu column are in one row. I achieve this with: .right-menu{...grid-auto-flow:columndense;...} If I remove the grid-auto-flow attribute, the overflow stops. However, the items are now stacked into multiple rows, which is not what I want. I also tried converting .ri

2023-09-05 15:18:28

PHP full text search functionality using AND, OR and NOT operators

Newbie question: I'm trying to implement a full text search on a search string using php and eloquent. $searchstring="+(victimsuspect)+crime-covid";$searchresult=RssItem::whereRaw("MATCH(description)AGAINST('$searchstring'INBOOLEANMODE)")->ge

2023-09-05 15:06:32

Shortest way to convert all PHP types to string

I'm writing a general system that I hope can one day be applied to fields like medicine (i.e. it's "scientific"). I think the best way is to represent all the data in php with strings (true will be "true", false will be "false" and so on). The reason for this is that in php any value has a unique string representation (such as the php code itself). I post this question to speed up the design process of this program. Some values are easily converted to strings: numbers, booleans, etc. Some are not easy: objects, arrays, resources. I think the transfer object and

2023-09-05 15:34:44

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How to use HTML, CSS and jQuery to implement advanced image switching functions

Course Introduction：How to use HTML, CSS and jQuery to implement the advanced function of image switching Introduction: In modern web design, image switching is a common requirement. By using HTML, CSS and jQuery, we can achieve various forms of image switching effects. This article will introduce you to how to use these technologies to implement advanced functions of image switching and provide specific code examples. 1. HTML and CSS layout: First, we need to create an HTML structure to accommodate images and switching control buttons. Can use one

2023-10-25 comment 0 879

How to use CSS Flex elastic layout to implement sliding card layout

Course Introduction：How to use CssFlex flexible layout to implement sliding card layout In modern web development, flexible layout (Flexbox) has become more and more popular. It is a CSS module for positioning and layout elements that can easily achieve various complex layout effects. This article will introduce how to use Flex elastic layout to implement sliding card layout and provide specific code examples. Sliding card layout is a common UI design pattern, often used to display images or content. Each card can be switched to the next by swiping or clicking

2023-09-28 comment 0 933

Print preview can display some pictures inserted in WORD but cannot be printed.

Course Introduction：The part of the picture inserted in WORD cannot be printed and the print preview can be seen. How to solve 1. Because you are working in normal view or outline view. Workaround: To see where objects such as headers, footers, or graphic objects appear on the printed page, switch to Page view for accurate layout and typesetting. If you want to see how these objects appear in Web Layout view, switch to Web Layout view so you can adjust the style and alignment. 2. What appears on the screen may be the field code of a linked embedded graphic. Field codes are instructions enclosed in field characters ({}). Workaround: To turn off field codes and display graphics, press Alt+F9. 3. Turn on the "Picture Box" view option. If this option is checked, when opening a document containing an image

2024-01-13 comment 0 1476

How to create a responsive carousel layout using HTML and CSS

Course Introduction：How to create a responsive carousel layout using HTML and CSS Carousels are a common element in modern web design. It can attract the user's attention, display multiple contents or images, and switch automatically. In this article, we will introduce how to create a responsive carousel layout using HTML and CSS. First, we need to create a basic HTML structure and add the required CSS styles. The following is a simple HTML structure: <!DOCTYPEhtml&g

2023-10-20 comment 0 1247

Update as soon as you get it, Xiaomi MIX Fold 4 folding screen mobile phone has been heavily promoted HyperOS 1.0.8.0: new split-screen fast-cut function

Course Introduction：According to news on July 23, Xiaomi MIX Fold 4 folding screen mobile phone has been officially launched at 10 am today. The phone is equipped with the third-generation Qualcomm Snapdragon 8 flagship platform and supports two-way satellite communication. The price starts at 8,999 yuan. The Xiaomi MIX Fold 4 folding screen mobile phone has been pushed to the 1.0.8.0.UNVCNXM version update. The update details are as follows: The system incorporates the July 2024 security patch to enhance system security. The free window has a new split-screen fast-cut function, free switching between half screen and full screen, and the operation is more convenient. The simple widget has a new travel assistant function, which intelligently reminds train and plane itineraries, making travel more convenient. It actively and intelligently adds AI image recognition. You can upload images to identify the content of the image and take pictures to solve problems. Supports passerby elimination, AI image expansion, AI background changing, and animation style switching.

2024-07-24 comment 0 996

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