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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11302

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 17615

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 11321

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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'Ming Tide' photo album requires high-definition three-dimensional pictures

Course Introduction："Mingchao" Xiangli must be approachable, gentle and sensible. He is not only the chief researcher of Jinzhou Huaxu Research Institute, but also a young expert in many fields. Since some friends don't know much about his high-definition vertical paintings or wallpapers, let's follow Let’s take a look with the editor. Mingchao Xiangli wants a complete collection of high-definition three-dimensional pictures

2024-07-15 comment 0 766

How to take good-looking photos with today's watermark camera? Tutorial on taking high-definition photos with today's watermark camera

Course Introduction：First open the Today Watermark Camera APP, as shown below, select the three horizontal bars icon in the upper left corner of the interface, click to open to open the interface as shown below, select the camera settings option, click to open to open the interface as shown below, select the photo resolution option, click to open to open as shown below Picture interface, click to check the HD option, and then return. After returning, as shown below, you can see that the photo resolution has been set to high definition.

2024-06-22 comment 0 1083

Huawei nova11SE parameter configuration details? Configuration interpretation

Course Introduction：On October 31, Huawei nova11SE, which is positioned as "dual high-definition front and rear, 100 million pixel light and shadow portraits", was officially released. The new phone has a 32-megapixel high-definition portrait lens on the front and a 100-megapixel light and shadow triple camera system on the rear. It focuses more on portrait photography and the expression of portrait emotions, meeting the needs of consumers for high-definition photos. At the same time, the machine is also equipped with the new HarmonyOS4 system, built-in 4500mAh large battery and 66W Huawei super fast charging Turbo2.0. Continuing the design aesthetics of the nova family, the trendy star-studded double-ring design combines classic design with fashionable new concepts, and is matched with color No. 11 to show the look of young users pursuing youthful vitality and true personality.

2023-11-19 comment 0 1280

How to use ps to make ID photo

Course Introduction：Use PS to make ID photos: Open Photoshop to create a new document of 6*4 inches or 15*10 cm, set the resolution to 300, then open the original photo, use the crop tool to crop the original photo to 2.5 cm wide and 3.5 cm high and Set the resolution to 300, and then drag the cropped photos into the new document for layout.

2019-07-29 comment 0 25487

VR/AR tourism will become the 'next Internet celebrity”

Course Introduction：As the fastest growing sector in China's tertiary industry, tourism is always the most fashionable one. With the rapid development of virtual reality VR and augmented reality AR, tourist attractions, travel agencies and online travel platforms are now beginning to test VR and AR technologies. VR/AR tourism will become the "next internet celebrity". The digital tourism platform "Renlv Vision" is committed to providing tourists with one-stop services of "travel, accommodation, transportation, food, entertainment, and shopping" by integrating VR/AR technology, tourism, humanistic education, local specialties, life services and other resources , realize the effective connection of tourism resources in the whole region, realize users' pre-experience of tourism, and solve the problems of complicated tourism planning and poor tourism experience. 1. VR scene restoration. Through virtual reality VR technology, it can create realistic scenes through high-definition modeling and panoramic video.

2023-06-10 comment 0 1051

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