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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11275

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 17601

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 11310

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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Pure CSS3 creates an animated special effect where the border shadow spreads outwards

Course Introduction：In the previous article "Teach you step by step how to use CSS3 to implement dynamic effects of button hovering and flashing", we introduced the method of using CSS3 to add dynamic effects to buttons and achieve a button hovering and flashing shadow animation effect. Today, this article will share with you a border animation effect. Let’s see how to use CSS3 to achieve the animation effect of the border shadow spreading outward.

2021-08-25 comment 0 6042

Pure CSS3 to achieve dynamic bicycle special effects

Course Introduction：This article mainly introduces how to use pure CSS3 to realize a dynamic bicycle. The article gives a complete example code. The effect after implementation is very good. You can run it directly to see the effect. Friends who need it can come and learn together. .

2017-02-24 comment 0 1304

How to use AE to draw the effect of passing through clouds

Course Introduction：Create a new composition, shortcut ctrl+n, and name it [Cloud Effect]. Create a new solid color (solid layer), shortcut key ctrl+y, name [cloud] and create the following effect. Type: box, rate and random speed: 0, emitter size x increases, z increases, and closer to us. Particles increase. Pull down along the y-axis. Adjust the parameters to turn the particles into clouds. The particle type here can be selected from clouds or smoke. Note that the advance mobility must be 100. There will be particles (clouds) starting from frame 0. Brother Ding can adjust the transparency. Create a new solid layer here, name it [Sky], add a gradient, and drag it to the bottom. Create a new camera and create a new blank object. Make the camera follow the blank object and establish a parent-child relationship. Next, perform keyframe animation on the blank object to

2024-04-28 comment 0 837

Teach you step by step how to use CSS3 to achieve dynamic effects of button hovering and flashing

Course Introduction：In the previous article "How to create a waterfall flow layout with pure CSS3?" In "A Brief Analysis of the Columns Method", we introduced the method of using the CSS3 column series properties to create a waterfall layout. Today we will take a look at how to use CSS3 to add dynamic effects to buttons, achieve a button hover shiny shadow animation effect, and make the web page more interactive!

2021-08-24 comment 0 4623

Using pure CSS3 character walking animation example code

Course Introduction：What I share with you today is a character walking animation implemented using pure CSS3. Without using JavaScript, CSS3 technology is used to depict the character's walking posture very realistically. In fact, the principle of animation implementation is relatively simple. Divide the character's walking state into multiple pictures, and then use the animation properties of CSS3 to connect these pictures together to form the character's walking animation effect. Online demo source code download HTML code <div id='canvas'> <div class='sky'> ..

2017-03-20 comment 0 3251

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