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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11356

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 17659

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 11370

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 Taobao Hongmeng native version

Course Introduction：Huawei officially announced the progress of the HarmonyOSNEXT software ecosystem. The native version of Taobao HarmonyOS has been launched and has been adapted to mobile phones, folding screens and tablet devices. Introduction to Taobao Hongmeng native version According to reports, Taobao has completed the development of the Beta version of the Hongmeng native application, which supports core functions such as product search, display, and ordering. On large-screen devices such as folding screens or tablets, Taobao uses Hongmeng ArkUI adaptation capabilities to complete application adaptive layout. Officials stated that Taobao’s multi-terminal adaptation workload has been reduced by 50%-70% compared to before. In the application startup process, the startup time of the Hongmeng native version of Taobao application has been directly reduced from 2 seconds before optimization to less than 1 second. At the same time, the first screen of the application homepage, core link response, first screen fluency, and multimedia start time have been upgraded. exist

2024-08-06 comment 0 435

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 3246

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 1321

JavaScript native code implements an example of exquisite Taobao carousel effect

Course Introduction：This article mainly introduces the native JavaScript to realize the exquisite Taobao carousel effect. It analyzes in detail the relevant HTML layout, css and js core function code of JavaScript to realize the Taobao carousel function in the form of a complete example. It also comes with demo source code for readers to download. For reference, friends in need can refer to it

2017-05-28 comment 0 3456

Native JS implements Taobao-like product classification menu effect code on the left side_javascript skills

Course Introduction：This article mainly introduces the native JS implementation code to imitate the product classification menu on the left side of Taobao. It can realize the simple function of sliding the mouse over the tab switching. It is very simple and practical. Friends who need it can refer to it.

2016-05-16 comment 0 3059

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