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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11422

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 17716

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 11415

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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javascript - How to get files by dragging them to the browser?

If you click to upload on the page, you can click to get the files[0] in the input file; now the need is to drag the image directly from the desktop to the browser. How to get the first file in files[0]?

2017-06-12 09:25:02

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

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Sharing examples of html5 multiple image preview uploading and click-and-drag controls

Course Introduction：When uploading pictures, I found a very useful control that supports uploading multiple pictures at the same time. You can click to select a picture, or you can drag the picture to the upload box and upload it directly. It is convenient, easy to use, and the interface is simple. You can basically put it directly. Use it in the project.

2018-03-16 comment 0 3435

jQuery HTML5 implements image preview effect before uploading_jquery

Course Introduction：This article mainly introduces jQuery HTML5 to realize the preview effect of images before uploading. It involves the dynamic display effect of jquery operating images. It is very simple and practical. Friends who need it can refer to it.

2016-05-16 comment 0 2043

jquery implements local preview function before image upload_jquery

Course Introduction：This article mainly introduces in detail the local preview function before image upload based on jquery. Interested friends can refer to it.

2016-05-16 comment 0 2220

jQuery plug-in jcrop Fileapi perfectly realizes image upload, crop and preview code sharing_jquery

Course Introduction：This article mainly introduces the jQuery plug-in jcrop Fileapi to perfectly implement the code of image upload, cropping and preview. It is very simple and practical, and the effect is great. Friends in need can refer to it.

2016-05-16 comment 0 1742

How to upload image files to Empire CMS

Course Introduction：Image files can be uploaded through the file selector or drag-and-drop: File selector: Log in to the backend, click the "Picture" button in the text editor, and select the image to upload; Drag-and-drop: Drag the image into the text editor, supporting HTML5 file dragging The browser you are using can upload images directly.

2024-04-17 comment 0 502

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