Course Elementary  2331

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  12704

Course Introduction："Linux Load Balancing Video Tutorial" This course is recorded by Boole Education and describes the load balancing of websites. The packet processing capability of the Linux system is quite powerful. Through the Netfilter framework or policy routing system, users can define packets very flexibly. Processing rules. Therefore, it is naturally very simple to implement load balancing under Linux.

Course Advanced  13068

Course Introduction："Linux Load Balancing Video Tutorial" mainly introduces what load balancing is, Nginx_upsteam, Ngnix+keepalived, check_nginx_port script, LVS introduction and practice, etc.

Course Intermediate  11273

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.

Course Elementary  20400

Course Introduction：PHP array functions allow you to access and manipulate arrays, supporting single-dimensional and multi-dimensional arrays. Array functions are a core part of PHP. No installation is required to use these functions. "PHP Function: Array Array Function Video Explanation" explains the syntax, parameters, return values, etc. of PHP array functions, and provides examples of functions through the PHP editor to help PHP learners better understand and use array functions.

Course Introduction：How to convert a negative number to a positive number in JavaScript: 1. Use the inversion operation "-", the syntax "-x"; 2. Use the abs() function to convert the negative number into a positive number by taking the absolute value of the negative number, the syntax " Math.abs(x)".

2021-09-03 comment 0  15135

Course Introduction：PHP array slicing using negative indexing enables getting elements from the end of the array or creating a reverse array. Syntax: $new_array=array_slice($array,$start,$length); where $start and $length can be negative numbers. A negative $start means counting from the end of the array, and a negative $length means taking elements from the end. Through negative slicing, you can get the specified number of elements at the end of the array (such as array_slice($array,-2)) or reverse the array (such as array_slice($array,-5,-1)).

2024-04-29 comment 0  838

Course Introduction：The complement of negative numbers is a binary encoding method for representing negative numbers. The following is the calculation method of the complement of negative numbers: 1. Convert the absolute value of the negative number into binary form; 2. Invert each bit of the binary number; 3. Just add 1 to the result you get.

2023-08-31 comment 0  12102

Course Introduction：MYSQL把负数变为正数

2016-06-01 comment 0  5879

Course Introduction：Method: 1. Use foreach to traverse the array with the syntax "foreach($arr as $k=>$v){}"; 2. In the loop body, determine whether the array element "$v" is a negative number. If it is a negative number, use unset() delete, syntax "if($v<0){unset($arr[$k]);}".

2022-05-24 comment 0  3135