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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11451

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 17736

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 11438

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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Automatically expand text area

I'm trying to make a simple auto-expanding text area. This is my code: textarea.onkeyup=function(){textarea.style.height=textarea.clientHeight+'px';} But the textarea grows infinitely as you type... I know there are Dojo and jQuery plugins It is possible to achieve this, but I don't want to use them. I looked at their implementation and originally used scrollHeight but did the same thing. You can start

2023-10-21 08:49:23

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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jquery implements the effect of prompting text to slide upward when entering a form_jquery

Course Introduction：This article mainly introduces the jquery implementation of the prompt text sliding upward effect when entering a form, and involves the dynamic operation skills of jquery mouse event response and page element styles. It has certain reference value. Friends who need it can refer to it.

2016-05-16 comment 0 1174

jquery implements hiding and display animation effects/dynamic decrement of input box characters/navigation button switching_jquery

Course Introduction：jquery implements hidden display layer animation effects, imitation Sina character dynamic input, tab effects, etc. The following is all the code. Friends who are interested can practice it. I hope it will be helpful to everyone's learning.

2016-05-16 comment 0 1072

How to operate dynamic data in PPT design

Course Introduction：Click Insert in the menu bar above. Select Insert text box. Enter the number in the text box. Click Animation in the menu bar above. Just select dynamic numbers in animation effects. The numbers entered in this way can be displayed dynamically.

2024-04-17 comment 0 699

A simple tutorial for creating line effects in PPT

Course Introduction：First enter the text, click [Insert]-[Shape] above, and select a straight line shape. Then select the straight line to add animation, and select [Enter]-[Other Animation Effects]-[Stretch] in Add Animation. Then set the animation effects, such as the direction and speed of the line. You can see the effect after setting it up.

2024-04-17 comment 0 1075

How to create digital scrolling effect in PPT_Tutorial on how to create digital scrolling effect in PPT

Course Introduction：First, open our PPT presentation: Then, switch to the [Insert] page, select the [Text Box] control, and insert the [Vertical Text Box]: Then, enter data in the text box and adjust the font size and style: Select all data, switch to the [Animation] page: Expand the animation effect bar, set the effect to [Draw Custom Road Strength], and select the [Straight Line] effect: Then, switch to the [Insert] page, insert [Shape], and select [Rectangle] 】, cover the excess numbers: adjust the fill color and outline color of the rectangle, the fill color is consistent with the background color, and the outline is set to [no lines], so that the rectangle covers the numbers that do not need to be displayed: when we play the slide When you click, you will find that the numbers are scrolling:

2024-04-25 comment 0 1262

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