Course 9871
Course Introduction:Java online learning Web application uploads pictures to generate thumbnails. The course "Java Video Tutorial for Implementing Equal-proportioned Thumbnails of Images" explains how to use Java to implement the function of generating equal-proportioned thumbnails of images in the form of examples. The performance of information browsing is improved through thumbnail generation, which reduces the amount of data transmission while ensuring user experience.
Course 2857
Course Introduction:Course introduction: 1. Cross-domain processing, token management, route interception; 2. Real interface debugging, API layer encapsulation; 3. Secondary encapsulation of Echarts and paging components; 4. Vue packaging optimization and answers to common problems.
Course 1795
Course Introduction:Apipost is an API R&D collaboration platform that integrates API design, API debugging, API documentation, and automated testing. It supports grpc, http, websocket, socketio, and socketjs type interface debugging, and supports privatized deployment. Before formally learning ApiPost, you must understand some related concepts, development models, and professional terminology. Apipost official website: https://www.apipost.cn
Course 5521
Course Introduction:(Consult WeChat: phpcn01) The comprehensive practical course aims to consolidate the learning results of the first two stages, achieve flexible application of front-end and PHP core knowledge points, complete your own projects through practical training, and provide guidance on online implementation. Comprehensive practical key practical courses include: social e-commerce system backend development, product management, payment/order management, customer management, distribution/coupon system design, the entire WeChat/Alipay payment process, Alibaba Cloud/Pagoda operation and maintenance, and project online operation. .....
Course 5172
Course Introduction:(Consult WeChat: phpcn01) Starting from scratch, you can solve conventional business logic, operate MySQL with PHP to add, delete, modify, and query, display dynamic website data, master the MVC framework, master the basics of the ThinkPHP6 framework, and learn and flexibly master all knowledge involved in PHP development. point.
Is full count query really that slow on a large MySQL InnoDB table?
我还想知道,为什么具有2.8mio条目的“通信”表的计数比具有4.5mio条目的“事务”表的计数慢。我知道使用where子句会更快。我只是想知道糟糕的表现是否正常。
2023-11-07 15:52:43 0 2 236
How can I set the height of an outer div to always be equal to the height of a specific inner div?
如果其他内部div的内容[比最左边的div]少,它们将有空白空间。如果他们有更多的内容[比最左边的div],他们将得到一个滚动条。
2023-11-07 13:59:30 0 2 314
How to get the RGB value of CSS/HTML named color in JavaScript
但我意识到我应该能够输入一个名字字符串,比如"AliceBlue",然后让JavaScript找到它的某种RGB表示(十六进制也可以)。我知道浏览器中至少有140
2023-11-06 09:05:50 0 2 210
Passing PHP variables to SQL query in oci_parse
但它没有正确地对待它,给了我ORA错误,比如-无效字符。我尝试将变量转义为“$sid”,这会使错误消失,但查询不会返回任何内容。
2023-11-04 12:38:22 0 1 306
Course Introduction:比特币节点是与比特币网络连接的计算机,负责验证交易、维护区块链并传播信息。这些节点分为全节点、轻节点和挖矿节点,それぞれ验证所有交易、从其他节点获取信息或创建新区块。
2024-07-03 comment 471
Course Introduction:想要出售比特币,有三种主要途径:交易所(Coinbase、Binance)、场外交易(OTC)和点对点交易(LocalBitcoins、Paxful)。通过交易所出售比特币需要注册账户、存入比特币并下达出售订单。
2024-07-03 comment
Course Introduction:比特币持仓集中,市场流动性有限,交易所限制出售量。如果有人试图一次性套现大量比特币,价格将暴跌,市场波动加剧,比特币声誉受损。
2024-07-03 comment
Course Introduction:排名前十的比特币交易所包括:币安、Coinbase、火币、FTX、OKX、Gemini、Kraken、Bitstamp、Bitfinex和Gate.io,这些交易所的排名依据市值和交易量综合评定。
2024-07-03 comment
Course Introduction:比特币交易手续费取决于交易规模、网络拥堵和挖矿难度。计算公式为:(交易规模x10^8)x(网络拥堵程度+挖矿难度)/23。
2024-07-03 comment