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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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Teach you how to make an open source small program calculator

Course Introduction：This is a small program novice practice project (adapted based on WeChat quick demo) and made a calculator. It has a basic UI, basic jumps and simple js logic, making it very suitable for beginners to read. Reading other people's code is to consolidate your own programming skills. Knowledge related to WeChat applet development: 1. CSS Flexbox layout 2. Event binding, page jump 3. Page, window, App global settings 4. How to use wxml, wxsss, js, json files 5. view, text,. ..

2017-04-26 comment 0 4824

Share a simple small program demo

Course Introduction：Preface This is a relatively simple demo of a small program that can simply record text notes. It was written two months ago. Not long after it was written, I was busy with the exam... From the first time I came into contact with the small program to the time I finished writing this project, I used it In less than a day, the server is my own cloud server (don’t mess with it!), written in PHP. I won’t say much, just watch the demo~ github mycloudnote client mycloudnote server Note: Since I don’t have Apply to get the appid, so I can't get the user's WeChat account id. I...

2018-05-19 comment 0 20112

How to use PHP to place orders on WeChat

Course Introduction：PHP is a widely used open source server-side scripting language, which has a wide range of applications in the Internet industry. Among them, applying PHP to WeChat ordering business can enable merchants to quickly pay users and improve user experience. This article will introduce how to use PHP to implement WeChat orders. 1. Principle of WeChat ordering WeChat payment refers to the payment behavior of users through the WeChat payment function. From the beginning of the user's order to the final payment, the entire payment process is maintained in the WeChat environment. WeChat payment requires the use of the WeChat payment API interface, and merchants develop corresponding codes themselves.

2023-04-21 comment 0 710

How to use ChatGPT to quickly build a website template

Course Introduction：Welcome to the exciting world of natural language processing and machine learning! Today, we’ll explore the capabilities of ChatGPT, the most advanced artificial intelligence tool currently available, developed by the company OpenAI. Of course, you can also think of it as an intelligent robot. One of the most impressive features of ChatGPT is its ability to generate source code based on a simple description. Imagine being able to quickly build a complete website without having to write line after line of code yourself. Sounds unbelievable? However, ChatGPT can help us realize such a need. Now let us witness the miracle happen! Leveraging the power of ChatGPT, we will try to automatically build one from scratch

2023-04-11 comment 0 1538

How to install win7 operating system on computer

Course Introduction：Among computer operating systems, WIN7 system is a very classic computer operating system, so how to install win7 system? The editor below will introduce in detail how to install the win7 system on your computer. 1. First download the Xiaoyu system and reinstall the system software on your desktop computer. 2. Select the win7 system and click "Install this system". 3. Then start downloading the image of the win7 system. 4. After downloading, deploy the environment, and then click Restart Now after completion. 5. After restarting the computer, the Windows Manager page will appear. We choose the second one. 6. Return to the computer pe interface to continue the installation. 7. After completion, restart the computer. 8. Finally come to the desktop and the system installation is completed. One-click installation of win7 system

2023-07-16 comment 0 1165

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