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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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echarts relationship diagram unicode encoding phpsql 20160621 review

Course Introduction：: echarts relationship diagram unicode encoding phpsql 20160621 review: 1. I have been studying how to make echarts relationship diagram in the morning. echarts has two official websites, one is echarts3 and the other is echarts2. I have been using echarts3, and there are several complicated examples in it. It is to call an xml. This xml is a famous relationship diagram (only draw relationship diagrams?). The software Gephi exports the format gexf. The first idea was to dynamically generate this xml. Later, I found it a bit complicated, and then I looked at a few more A simple example, combined with the documentation, shows that it can be written directly in json format, involving

2016-07-28 comment 0 1021

How to import echarts map into vue

Course Introduction：Import method: 1. Use the "npm install echarts -S" command to install echarts dependencies; 2. Globally introduce echarts in "main.js"; 3. Use the import statement to introduce the "china.js" file in pages that require maps. Just add relevant code.

2021-10-27 comment 0 4625

ECharts scatter plot (multidimensional): how to display data relationships and distribution

Course Introduction：ECharts Scatter Chart (Multi-dimensional): How to display data relationships and distribution, specific code examples are required. Introduction: In the field of data visualization, scatter chart is a commonly used chart type, which can display the relationship between different dimensions and the distribution of data. Distribution. As a powerful and flexible visualization library, ECharts provides a wealth of functions and configuration options that can be used to create various types of scatter plots. This article will introduce how to use ECharts to create scatter plots and give specific code examples. Prepare the data: First,

2023-12-17 comment 0 883

Report import and data correlation skills for Vue statistical charts

Course Introduction：Report import and data correlation skills for Vue statistical charts Introduction: Vue, as a popular front-end framework, is widely used in various web applications. In web applications, statistical charts are one of the most common ways to display data. This article will introduce how to import the statistical chart library in Vue, and show how to achieve dynamic updating of charts through data association techniques. 1. Selection and import of report libraries In Vue, there are many excellent statistical chart libraries to choose from, such as ECharts and HighCharts.

2023-08-18 comment 0 1047

How to import and export statistical chart data through ECharts and php interfaces

Course Introduction：How to import and export statistical chart data through ECharts and PHP interfaces. In modern data visualization, statistical charts are a very important way to visually display the trends and relationships of data. ECharts is a very powerful front-end data visualization library that can provide rich chart types and interactive functions. This article will introduce how to use ECharts and PHP interfaces to implement data import and export of statistical charts. 1. Data import: Import data into ECharts

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