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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11245

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 17581

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 11291

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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Issues with Solidity to Javascript return types

First, to make it easier to understand the problem, I will only keep the functions that are more useful for understanding the problem. This code allows the creation of NFTs in an array, where the first NFT has an idToken of 0. When I click the "Get data from contract" button, I want to pass parameter 0 to the readContract(tokenid) JavaScript function to display the Power value, a uint8 (randomly generated, value from 0 to 100) HTML file. Unfortunately, I encountered a bug and I tried various ways to resolve it without success. Contracts and Java

2024-01-17 00:12:18

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

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Understanding Divisible NFTs: Breaking down the full picture of divisible NFTs

Course Introduction：In recent years, the crypto industry has ushered in a craze for non-fungible tokens (NFTs) and digital art. As more and more assets, both physical and virtual, are tokenized, the introduction of new protocols that ensure security, shareability, economics, liquidity, and shared use becomes critical. However, simply owning tokens can no longer meet the needs of users, so divisible NFTs in the next generation token economy have emerged. Divisible NFTs allow organizations operating on public chains such as Ethereum to issue tokens, allowing users to access their goods and services, receive company rewards, and participate in the governance of the business model. The emergence of this new token economy will bring more opportunities and potential to users and organizations. What is a divisible NFT? Fractional NFT (FractionalN

2024-01-26 comment 0 868

Exploring Bitcoin NFTs: From Counterparty to Ordinals

Course Introduction：The development of Bitcoin NFTs is remarkable and has become an important milestone in the field of blockchain and cryptocurrency. In this article, we will delve further into this topic and simplify the process of participating in this latest technological advancement in the crypto industry. On January 20, 2023, the Ordinals protocol was launched. This protocol can support the issuance of NFTs on the Bitcoin blockchain, triggering widespread debate in the Bitcoin community. Historical Perspective: The Evolution of Bitcoin and NFTs The history of Bitcoin NFTs can be traced back to the establishment of the Counterparty platform in 2014. Counterparty is a groundbreaking platform that leverages Bitcoin blockchain technology to create digital assets, laying the foundation for NFTs in the Bitcoin ecosystem. Counterp

2024-02-29 comment 0 586

Which Country Buys the Most NFTs?

Course Introduction：Non-fungible tokens (NFTs) have seen a prominent decline since their peak in 2021. The digital assets seem to have struggled to hold on to momentum and cryptocurrencies have taken over the market. But, does this mean that NFTs are dead? And if not, w

2024-08-05 comment 0 605

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