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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11352

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 17653

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 11368

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 the operation of making iPad icon models with Edraw flowchart making software

Course Introduction：Open Edraw flowchart production software, create a new [Predefined Template and Example], select [Wireframe], select the template [iPadUI], click the [Create] icon to generate a blank canvas, with vector icons and touch gestures on the left, open [ Vector Icons], find the signal and battery icons, drag one to the canvas, find three groups of icons, drag them to the canvas, adjust their positions, select all icons, and set the icon transparency and color.

2024-06-01 comment 0 1191

An introduction to how to create iPad icons with Edraw flowchart making software

Course Introduction：1. Open Edraw flow chart making software, create a new [Predefined Template and Example], select [Wireframe], as shown in the figure: 2. Select the template [iPadUI], and click the [Create] icon, as shown in the figure: 3. Generate a blank canvas , there are vector icons and touch gestures on the left side, as shown in the figure: 4. Open [Vector Icons], find the signal and battery icons, and drag one to the canvas, as shown in the figure: 5. Find three more groups of icons, drag them to the canvas, and Adjust the position, as shown in the figure: 6. Select all icons and set the icon transparency and color, as shown in the figure:

2024-04-08 comment 0 656

Detailed steps for batch importing vector material images into PPT

Course Introduction：1. Search for vector icons, as long as they are in ai or eps format. 2. Open ai, double-click the blank space to import the material. 3. Select a material. As can be seen from the picture, each character is grouped together. We choose to right-click to cancel the grouping. 4. After canceling the grouping, select a small icon individually and copy it with ctrl+c. 5. We go to the PPT interface, press ctrl+alt+v to paste selectively, and select the enhanced metafile. Paste the image below. 6. It’s not over yet. The image is not editable. We right-click and select Group-Ungroup. In the pop-up window, we select Yes. 7. Open the selection pane, and you can see that the graphic is composed of multiple small vector graphics. 8. At this time, you can modify the graphic, such as changing the clothes to yellow.

2024-03-26 comment 0 841

How to create a circular gradient effect with AI - How to create a circular gradient effect with AI

Course Introduction：1. After using the ai software to create a new drawing board, click the rectangle tool in the graphics tool and draw a vector graphic. 2. Double-click the gradient tool to open the gradient settings window. 3. Click the gradient color bar, add a color slider, and select a color. 4. Edit Gradient type, just modify the angle and length and width percentage as shown below

2024-05-06 comment 0 970

Detailed method of constructing textured cones with geometric sketchpad

Course Introduction：1. Construct an ellipse. Construct horizontal ray AB, click and hold the custom tool icon, select [Ellipse (Center + Vertex)] in [Conic Section A], and click two points C and D on ray AB to construct an ellipse. 2. Construct points and line segments. Construct two points E and J arbitrarily on the ellipse. Select point C to construct a perpendicular line where ray AB passes through point C, use the point tool to construct point G on the perpendicular line, and construct line segment GJ. Select points J, C, and E in sequence, [Measurement—[Angle]. 3.Set color parameters. Select the line segment GJ and angle measurement value, [Display] - [Color] - [Parameter] - [Grayscale], select 0 to 120 for [Parameter Range], and check [Bidirectional Loop]. (These two values determine how large the angle starts and ends. The color of the line segment cycles from black to white in both directions.

2024-04-17 comment 0 1150

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