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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11330

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 17632

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 11346

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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The DM 5.0 era begins, BYD's 2025 Song PLUS DM-i official pictures released

Course Introduction：According to news on July 24, BYD recently unveiled the official pictures of the much-anticipated 2025 Song PLUS DM-i model, proudly claiming that it is "BYD's first SUV with fifth-generation DM technology." This new model is expected to officially hit the market on July 25, bringing consumers a new driving experience. The 2025 Song PLUSDM-i shows its extraordinary taste and style with its unique black sky color and sandstone beige interior color scheme. What is even more eye-catching is that all new car series are equipped with the high-end smart cabin-DiLink100 as standard. This intelligent configuration will undoubtedly elevate the convenience and entertainment of driving to a new level. Power System The 2025 Song PLUS DM-i is equipped with BYD’s DM hybrid system, demonstrating BYD’s profound expertise in new energy vehicles.

2024-07-24 comment 0 674

Three of the world's best, BYD releases fifth-generation DM technology

Course Introduction：According to news on May 29, BYD recently held a grand fifth-generation DM technology conference and launched two new models, Qin LDM-i and Seal 06DM-i. At the press conference, BYD officially announced that its fifth-generation DM technology will lead the industry into the "Fuel Consumption 2 Era." According to BYD’s detailed introduction, the fifth-generation DM hybrid technology has three world bests: the world’s highest engine thermal efficiency of 46.06%, 2.9 liters of fuel consumption per 100 kilometers, and the world’s longest comprehensive endurance of 2,100 kilometers, setting a record low in fuel consumption per 100 kilometers. . The fifth-generation DM technology has built three core architectures: an electricity-based power architecture, a full-temperature vehicle thermal management architecture, and a smart-electricity integrated electronic and electrical architecture. In addition, the blade battery energy density of the new generation technology has been significantly improved.

2024-06-07 comment 0 1082

BYD Song PLUS DM-i and Song L DM-i are launched together, priced from 135,800 yuan

Course Introduction：On July 25, BYD held a launch conference for "Song LDM-i and 2025 Song PLUS DM-i" in Kaifeng, Henan. The SUV equipped with fifth-generation DM technology was officially unveiled. BYD continues the Shuangsong product line, launching a total of 5 versions with an official guide price of 135,800-175,800 yuan. This conference ushered in the era of SUV fuel consumption 3 and set a new fuel consumption and battery life benchmark for SUV models. This move demonstrates BYD's determination to promote inclusive technology and continue to lead the transformation of the new energy vehicle industry. Technology is king, quality is improving. Two months ago, BYD's fifth-generation DM technology was released, once again rewriting the history of global automobile energy consumption, triggering heated discussions across the Internet and a large number of spontaneous tests. As BYD Executive Vice President and Passenger Car COO He Zhiqi said at the press conference

2024-07-26 comment 0 459

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