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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11340

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 17646

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 11353

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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What are jQuery and Zepto?

Course Introduction：jQuery is a concise and fast JavaScript library that can be used to simplify event handling, HTML document traversal, Ajax interaction and animation for rapid website development. Zepto is a lightweight JS library for modern advanced browsers. It was originally developed for mobile terminals and is a lightweight alternative to jQuery.

2020-11-11 comment 0 2029

How to blur and sharpen images using Golang

Course Introduction：How to use Golang to blur and sharpen images Introduction: In the field of image processing, blurring and sharpening are common operations. As a powerful and efficient programming language, Golang's rich libraries and concise syntax make image processing easy and fun. This article will introduce how to use Golang to blur and sharpen images, and provide corresponding code examples. Image Blurring Blurring is achieved by adding a certain degree of weight to the pixels surrounding each pixel in the image. Golang provides

2023-08-18 comment 0 1354

WPS officially announced: It will officially shut down third-party commercial advertising!

Course Introduction：WPS officials issued an announcement today (December 20) announcing that "WPSOffice Domestic Personal Edition will officially close third-party commercial advertising." Interested users can update WPS to the latest version to obtain a more refreshing and concise office experience. The announcement pointed out that WPS realizes that every achievement achieved is inseparable from the support of users. The company will continue to uphold the mission of "simple creation, easy expression, and value-added connection" and is committed to providing users with excellent product and service experience. Currently, competition in the office software market is fierce, and major manufacturers are working hard to improve the competitiveness of their products. WPS decided to cancel third-party commercial advertisements, which is an important upgrade to user experience. This initiative will bring users a more refreshing and concise office experience and further enhance the role of WPS in

2024-03-04 comment 0 948

Introduce some advanced writing methods in Golang

Course Introduction：Golang is a modern, efficient programming language with a high degree of concurrency, concise syntax, and a powerful standard library. Due to its efficiency and reliability, more and more developers are choosing to use Golang to build high-performance applications. However, for developers who want to take full advantage of Golang's capabilities, they need to master some advanced programming skills that can make your Golang code more concise, efficient, and maintainable. Next, we will introduce some advanced writing methods in Golang to help you understand in depth

2023-04-27 comment 0 943

Air treatment method of Sharp range hood (creating a fresh kitchen environment)

Course Introduction：In modern life, the kitchen is one of the important places in our family life, but oil smoke and odor have caused us a lot of trouble. In order to solve this problem, Sharp has launched an innovative range hood that can effectively deal with oil fumes and odors in the kitchen, creating a fresh and healthy kitchen environment for us. 1. High-efficiency filtration system of Sharp range hood: Sharp range hood adopts a high-efficiency filtration system, including mesh filtration, activated carbon adsorption and high-density filtration, which can effectively remove oil smoke and odors and ensure that the discharged air is clean and odorless. 2. Strong exhaust capacity: Sharp range hood has a strong exhaust capacity, which can quickly discharge oil fumes and odors in the kitchen and keep the air fresh. Intelligent sensing technology: Sharp range hoods use intelligent sensing technology to automatically sense oil smoke and foreign substances.

2024-07-12 comment 0 658

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