Course Intermediate 5000
Course Introduction:JSON is a universal lightweight data storage and exchange format that is independent of programming languages. It is written based on JavaScript object syntax and is very suitable for Web development. Ajax is an asynchronous data loading technology that allows users to obtain data without leaving the current page. The user experience is excellent. This course combines json and ajax technologies to demonstrate the application scenarios of these two technologies with examples (the knowledge of php and mysql involved can be temporarily neglect)
Course Elementary 11435
Course Introduction:"Ajax Principles Detailed Video Tutorial" The core of Ajax is the XMLHttpRequest object, referred to as XHR. It is used to enable the browser to request additional data from the server without unloading the page, which greatly improves the user experience. Prior to this, this technology actually existed and was implemented by some people, but it was not popular and was not supported by browsers. However, after that, IE5 introduced XHR objects for the first time and supported ajax technology, which was subsequently supported by all browsers.
Course Intermediate 3242
Course Introduction:Tomcat is a Servlet container developed by the Jakarta project under the Apache Software Foundation. According to the technical specifications provided by Sun Microsystems, it implements support for Servlets and JavaServer Page (JSP), and provides some unique functions as a Web server, such as Tomcat Management and control platform, security bureau management and Tomcat valve, etc.
Course Elementary 2442
Course Introduction:If you have any questions, add WeChat: Le-studyg; the course content includes the basic principles of MySQL master-slave replication, the data synchronization mechanism during the replication process, the configuration and management of the replication topology, the high availability and fault tolerance of the master-slave replication, and the replication process. Data consistency and conflict handling, etc. Through an in-depth analysis of the underlying implementation of MySQL8 master-slave replication, you will understand key mechanisms such as data flow, log transmission, and status synchronization during the replication process, and learn how to optimize and adjust the performance and stability of master-slave replication.
Course Elementary 6653
Course Introduction:HTTP communicates based on B/S architecture, and the server-side implementation programs of HTTP include httpd, nginx, etc. The client-side implementation programs are mainly web browsers, such as Firefox, Google Chrome, Safari, etc. In addition, the client's command line Tools include elink, curl, etc. Web services are based on TCP, so in order to respond to client requests at any time, the Web server needs to listen on port 80/TCP. In this way, the client browser and the web server can communicate through HTTP.
Course Intermediate 1791
Course Introduction:React has made progressive adjustments to life cycle hooks since version v16.3, and some life cycle hook functions have been abandoned and added. This course will give you a deep understanding of the old and new life cycles.
Course Elementary 3218
Course Introduction:JS is an essential part of website development. It can achieve dynamic page effects and make the visual impact of the page stronger. This lesson mainly focuses on the theme of realizing carousel effect, including native js and jquery. In native js, it mainly explains the operation of events, and uses the learned knowledge points to achieve seamless scrolling carousel effect and switching carousel effect.
Course Intermediate 7440
Course Introduction:Many programmers who have worked for many years still have a very basic understanding of databases. They are confused as soon as they go out for interviews. They don’t understand basic SQL statements, more complex SQL queries, and SQL statement optimization. They don’t even know how to use them. Redis improves system performance and can withstand tens of millions of concurrencies. This set of courses will help you thoroughly understand MySQL locks, execution plans, indexes, MVCC & Redis transactions, cache, breakdown, penetration, avalanche, warm-up, etc., and you can complete all database interviews in one set!
Course Elementary 2052
Course Introduction:If you have any questions, please add us on WeChat: Le-studyg; the course content includes the basic principles of Nginx load balancing, load balancing algorithms, health check and failover, dynamic load balancing configuration, etc. Through an in-depth analysis of the principles and implementation details of Nginx load balancing, you will learn key knowledge such as how load balancing works, algorithm selection, and configuration tuning, and learn how to use this knowledge to manually write a simple load balancer. Whether you want to deeply understand the principles and internal mechanisms of Nginx load balancing, or you want to learn how to manually write a simple load balancer, this course will provide you with comprehensive guidance and practical experience. Whether you are a beginner or an experienced developer, you can gain practical knowledge and skills from this course and improve your capabilities in the field of load balancing.
Course Intermediate 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 Elementary 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 Intermediate 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 Elementary 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.
Course Elementary 8713
Course Introduction:(Consult WeChat: phpcn01) The learning objectives of the front-end development part of the 22nd issue of PHP Chinese website: 1. HTML5/CSS3; 2. JavaScript/ES6; 3. Node basics; 4. Vue3 basics and advanced; 5. Mobile mall/ Website background homepage layout; 6. Automatic calculation of tabs/carousels/shopping carts...
Course Intermediate 4525
Course Introduction:This course is a very comprehensive set of courses. The video knowledge covers the basics, advanced, operation and maintenance of MySQL and many other aspects. The course content is comprehensive and in-depth, which can fully meet our daily development, operation and maintenance, interviews, and self-improvement. It also uses a variety of methods during the explanation process to help students understand the key and difficult content in the course more clearly.
Course Elementary 2794
Course Introduction:Go's syntax is close to C language, but the declaration of variables is different. Go supports garbage collection. Go's parallel computing model is based on Tony Hall's Communicating Sequential Process (CSP). Other languages that adopt similar models include Occam and Limbo. Go also has the characteristics of this model, such as channel transmission. Compared with C++, Go does not include functions such as enumeration, exception handling, inheritance, generics, assertions, virtual functions, etc., but it adds features such as slice type, concurrency, pipelines, garbage collection functions, interfaces, etc. level support. Unlike Java, Go natively provides associative arrays (also called hashes or dictionaries), just like string types.
Course Elementary 2814
Course Introduction:This course uses real cases, is comprehensive and practical, and integrates GO core programming technology, programming ideas, and underlying implementation step by step from theory to practice, allowing learners to stay close to the pulse of the times and become trendsetters in the IT and Internet era.
Course Intermediate 2563
Course Introduction:This course is mainly a series of front-end development courses carefully created for students who are in the second stage of learning with zero foundation and want to enter the industry as front-end development. The course is based on the CRMEB open version, with practical drill teaching and a combination of theoretical explanation and practical operation. Better help students consolidate knowledge points and master operational skills. Effectively play the role of practical teaching to help students master development technologies.
Course Intermediate 3374
Course Introduction:MySQL installation and configuration under Linux, database logical layering, parsing process, index, detailed analysis of SQL execution plan, principles to avoid index failure, optimization cases, common optimization strategies, slow SQL troubleshooting, simulation of massive data, lock mechanism, MySQL under windows and linux Master-slave replication.
Course Intermediate 2963
Course Introduction:Redis is the most widely used storage middleware in the field of Internet technology. The understanding and application practice of Redis have become essential skills for mid-to-senior back-end developers today. MySQL is the preferred relational database for most Internet companies. Therefore, programmers cannot only understand the addition, deletion, modification, and query of the database and some simple usage skills. They also need to be proficient in some principles of MySQL to better deal with the problems encountered in actual work.