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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11425

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 17716

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 11416

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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Introduction to native js simulation of Taobao shopping cart

Course Introduction：This article mainly recommends to you a practical implementation of a native js simulated Taobao shopping cart project, including the implementation of single selection, all selection, deletion, quantity modification, price calculation, quantity calculation, preview and other functions of products. For those who are interested, You can refer to it

2018-07-02 comment 0 2159

Native js simulation Taobao shopping cart project actual combat

Course Introduction：This article mainly recommends to you a practical implementation of a native js simulated Taobao shopping cart project, including the implementation of single selection, all selection, deletion, modification of quantity, price calculation, quantity calculation, preview and other functions of products. For those who are interested, You can refer to it

2017-03-15 comment 0 3268

Native js simulation Taobao shopping cart project actual combat_javascript skills

Course Introduction：This article mainly recommends to you a practical implementation of a native js simulated Taobao shopping cart project, including the implementation of functions such as single selection, all selection, deletion, modification of quantity, price calculation, quantity calculation, preview, etc. For those who are interested, You can refer to it

2016-05-16 comment 0 1331

Pure jquery implements imitation of Taobao shopping cart settlement_jquery

Course Introduction：When shopping on Taobao, you need to add products to the shopping cart, which includes changes in the amount of all selections and single selections. When adding products, the amount will also change accordingly. Through this article, I will share with you how to imitate Taobao shopping cart settlement using pure jquery. Friends who need it You can refer to it

2016-05-16 comment 0 1836

Where and how to use Taobao shopping

Course Introduction：When browsing Taobao here, you can not only easily browse various selected contents such as fashion trends, life aesthetics, etc., but also discover a large number of high-quality products, realizing one-stop shopping pleasure. The following is how to use this function, let’s learn it together. Taobao Guangwang usage tutorial 1. First open the Taobao software, enter the homepage and switch to Guangwang, Messages, Shopping Cart, and My Taobao pages. We click [Guangwang]; 2. Then click to go to Guangwang Came here among the pages you were browsing;

2024-05-08 comment 0 1093

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