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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11221

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 17566

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 11276

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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Using JavaScript and Tencent Maps to implement map hotspot marking function

Course Introduction：Using JavaScript and Tencent Maps to implement map hotspot marking function Tencent Maps is one of the commonly used map service platforms in China. It has rich map data and powerful development tools, and can provide map display and location services for web pages and mobile applications. In modern web development, we often need to mark specific hot spots on the map so that users can quickly understand and locate them. This article will introduce how to use JavaScript and Tencent Map API to implement the map hotspot marking function. First, we need to introduce the Ja of Tencent Maps

2023-11-21 comment 0 699

Using JavaScript and Tencent Maps to implement map aggregation marking function

Course Introduction：Using JavaScript and Tencent Maps to implement map aggregation and marking functions In modern web development, map-related functions are widely used in various applications, such as geolocation services, travel navigation, etc. The map mark aggregation function is one of the important features, which can aggregate a large number of mark points to improve user experience and map display effects. This article will introduce how to use JavaScript and Tencent Maps to implement the map marker aggregation function, and provide specific code examples. First, we need to add

2023-11-21 comment 0 1320

How to mark locations on Amap and how to mark locations

Course Introduction：When we mark a location on the Amap, it feels like we have put a unique touch on the vast canvas of the map. We carefully select the location we want to mark with a specific purpose or emotion in mind. So how are places marked? Follow us below to take a look. How to mark a location 1. After opening the Amap APP, click the "More Tools" button on the main interface. 2. Select the "Favorites" option in the pop-up menu to enter the collection management page. 3. In the "Favorites" page, click the "Add Place" button to start adding new marked places. 4. Enter or select the address that needs to be marked. After confirming that the address is correct, click "Add to Favorites"

2024-06-14 comment 0 418

How to jump and cut at the marked position in Final Cut_Final Cut jump and cut at the marked position tutorial

Course Introduction：1. First move the timeline to the location where you want to perform jump cuts. 2. Then press the shortcut key M to mark. 3. Click the icon pointed by the arrow. 4. Then choose to jump and cut at the mark. The specific number of frames to jump can be selected according to your own needs. 5. Finally, the position we just marked is quickly jumped by ten frames. These ten frames are not directly cut off, but the ten frames are accelerated to the maximum extent. Press the space bar. You will be able to see the currently set effects.

2024-05-07 comment 0 813

How to use Picture Factory to create a gif animation effect

Course Introduction：1. Open the picture factory - find: animation production in the function interface, click to open the animation production interface. 2. After opening the animation production interface, click: Add - select all the pictures you want to animate - click Open to start adding pictures. 3. After selecting the image to open and add, you will be asked to set the maximum resolution. Hold down the mouse and drag it left or right to set the size, and then click OK. 4. Select to set all frames (you can also select the current frame) - set the time - then select and set the animation effect - set centering or stretching - set the width and height ratio. 5. Click play to check the effect - if you feel you are not satisfied with some pictures, click the X in the upper right corner of each picture below to delete them. To sort the positions, just drag the image below to the specified place.

2024-06-03 comment 0 786

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