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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11273

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 17597

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 11309

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 create interactive web pages: using jQuery EasyUI

Course Introduction：How to create interactive web pages using jQueryEasyUI? In modern web design, interactive web pages have become one of the key factors to attract users and improve user experience. In order to realize the design of interactive web pages, developers need to use various technologies and tools to realize user interaction with web pages. Among them, jQueryEasyUI, as a powerful open source JavaScript library, provides rich UI components and powerful interactive functions, which can help developers quickly build beautiful and feature-rich interactions.

2024-02-25 comment 0 811

What is the difference between Python and JavaScript?

Course Introduction：JavaScript makes web pages interactive. JavaScript, along with HTML and CSS, improves web page functionality. JavaScript validates forms, makes interactive maps, and displays dynamic charts. When the web page is loaded, the JavaScript engine in the web browser runs the JavaScript code, which is after the HTML and CSS have been downloaded. The JavaScript code then changes the HTML and CSS to update the user interface in real time. JavaScript code is run by a program called a JavaScript engine. Originally, JavaScript engines were built as interpreters. However, modern Java

2023-08-26 comment 0 1058

How to use Vue to implement keyboard event effects

Course Introduction：How to use Vue to implement keyboard event effects Vue is a popular JavaScript framework that helps developers build interactive front-end applications. Among them, keyboard events are one of the commonly used and important interaction methods in Vue. This article will introduce how to use Vue to implement keyboard event effects and provide specific code examples. Create a Vue application First, we need to create a Vue application. A simple Vue instance can be created with the following code: newVue({el:'#app'

2023-09-21 comment 0 845

What does php cut picture mean?

Course Introduction：PHP cutting is a technical process that converts web design drawings provided by designers into HTML+CSS code that meets web page production requirements. Cutting includes web page image cutting, CSS style writing, HTML code adjustment and other steps, aiming to convert web design drawings into code files that meet web page production standards. In web production, designers usually provide web design drawings, including web page structure, layout, element styles, etc., and web front-end engineers need to convert these design drawings into interactive and responsive web pages. Cutting pictures is important in this conversion process

2023-04-19 comment 0 543

what is js file

Course Introduction：JS files are text files containing JavaScript code, which are used to achieve interactive and dynamic effects on web pages. It helps developers better manage and maintain code, enabling better team collaboration and code reusability. JS files can be used to handle form validation, dynamically change web page content, respond to user clicks, etc. In front-end development, JS code is often written in one or more JS files and then used by reference in HTML files.

2023-08-10 comment 0 7602

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