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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11331

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 17634

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 11347

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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Detailed example of jQuery and HTML5 implementing WebGL high-performance fireworks bloom animation effect

Course Introduction：This article mainly introduces jQuery+HTML5 to realize WebGL high-performance fireworks blooming animation effect, which can realize the gorgeous animation effect of fireworks taking off and exploding. It will be very beautiful after completion. I hope it can help everyone master jQuery and HTML5 to realize WebGL high-performance fireworks blooming animation effect.

2017-12-30 comment 0 2556

Optimization of bubbles and fireworks special effects for Vue statistical charts

Course Introduction：Optimization of bubbles and fireworks special effects in Vue statistical charts Introduction: With the rapid development of the mobile Internet, data visualization has become one of the important means of displaying data. In data visualization, statistical charts can not only display data concisely, but also improve user experience. In the Vue framework, by using plug-ins and components, we can quickly implement various statistical charts, and optimize them to make them more vivid and attractive. This article will take bubble charts and fireworks effects as examples to introduce how to optimize the presentation of statistical charts in Vue. one,

2023-08-18 comment 0 1366

CSS3 realizes 3D text animation effect_text special effects

Course Introduction：CSS3 3D text animation, I feel shocked when I see this word. By the way, I also use the other two properties: transition and animation. Since CSS3 technology is used, please use browsers such as Firefox or Chrome when testing, otherwise you will not be able to see the effect.

2016-05-16 comment 0 1902

JS fireworks background effect implementation method_javascript skills

Course Introduction：This article mainly introduces the JS fireworks background effect implementation method, and analyzes the techniques of using javascript dom elements to achieve fireworks special effects with examples. Friends who need it can refer to it.

2016-05-16 comment 0 906

What are the canvas special effects?

Course Introduction：Canvas special effects include particle effects, line animation, image processing, text animation, audio visualization, 3D effects, game development, etc. Detailed introduction: 1. Particle effect, by controlling the position, speed and color of particles to achieve various effects, such as fireworks, raindrops, starry sky, etc.; 2. Line animation, by drawing continuous lines on the canvas, create various effects. A dynamic line effect; 3. Picture processing, by processing pictures, you can achieve various cool effects, such as picture switching, picture special effects, etc.; 4. Text animation and other features.

2023-08-18 comment 0 1475

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