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Self-study IT network Linux load balancing video tutorial

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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

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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

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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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vue.js implementation of imitating native ios time selection component development experience

Course Introduction：Preface I have been looking at VUE in the past few months, and then tried to implement certain components using only native js+vue. The PC side time selection component is the first implementation of time selection on the PC. It is also done on the mobile side, so I want to implement a time selector on the mobile side. Let me share my ideas and ideas for implementing the mobile wheel special effect time selector. process. The entire component is built based on vue-cli. Function 1. Time selection

2018-05-28 comment 3 4439

Detailed explanation of the implementation of the Chinese Valentine's Day confession function in html5+CSS3+JS

Course Introduction：Because today, August 28th, is China’s Valentine’s Day, the Chinese Valentine’s Day. As a programmer like me, I am not far behind, and I still have a heart to be single. Below, I will create a Chinese Valentine’s Day based on html5+css3+js. Special effects, specific example code, please refer to this article

2017-09-02 comment 0 3962

Summarize the points to note about loop statements

Course Introduction：Everyone in the front-end team: Let's put down what we are doing for now, there are new demands coming. The big counter on the homepage of our website is the one that counts user software downloads. The product manager looked at it and felt that some special effects should be added to make it look more user-friendly. He has come up with a plan, which is to have a circular scrolling effect when the number stops before the exact value. Similar to this: The task is as follows: Create a function that creates a two-dimensional array and returns it based on the count value string. For example: counterEffect("1250") //&nbsp...

2017-06-15 comment 0 1870

Can Ruan Mei use the clockmaker's relic in 'The Collapse of the Stars'?

Course Introduction：Can Ruan Mei use the Clockmaker's Relic in the Collapsed Star Dome Railway? Ruan Mei is a powerful synergistic character in Honkai Impact Railway. Because Ruan Mei is the main character who destroys, and the second Clockmaker's Relic comes with a defeat buff, many players want to know whether Ruan Mei can bring the Clockmaker's Relic. The following will provide a guide to whether Ruan Mei can bring the clockmaker’s relics. Can Ruan Mei use the Clockmaker's Relic in the Collapsed Star Dome Railway? 1. Ruan Mei's damage increase is mainly based on her own special attack. The maximum damage can reach 180. 2. If you choose other relics, you can stably get the full buff, but you need the special attack entry of the relics to achieve it. 3. When activated, the Clockmaker's Relic can provide the entire team with additional special attack, and Ruan Mei only needs 150 special attack to carry this relic. 4.

2024-04-08 comment 0 1257

Detailed graphic and text explanation of the calendar clock plug-in based on jQuery and HTML5

Course Introduction：jQuery is a web front-end JavaScript framework that is still very popular. What we are going to share this time is the calendar clock plug-in based on jQuery. Some calendar plug-ins are implemented based on HTML5 technology, so the animation effects are pretty good. Friends who are interested can go and take a look. 1. jQuery multifunctional calendar plug-in with event recording function. A major feature of this jQuery calendar plug-in is that it can record events after each date and set reminder times. If you are good at JS development, you can also improve it into a An APP for instant reminder. Online demo source..

2017-03-08 comment 0 2337

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