Programmer Think

Data interaction is an important part of front-end, static pages are the foundation, and interaction is the essence of web pages. Interaction is also divided into human-computer interaction and front-end and back-end data interaction. At this stage, most websites need front-end and back-end data interaction. How to interact? The process of inte ...

The second major feature of object-oriented: inheritance Inheritance: The common attributes and methods of all subclasses are extracted and placed in the parent class, and then inherited, that is to say, the repetitive code only needs to be writ ...

[tcp] nginx seven-tier load balancing Overview of nginx load balancing When our Web servers are directly user-oriented, they often carry a large number of concurrent requests. It is difficult for a single server to load. I use multiple Web servers to form a cluster. The front-end uses Nginx load balancing to distribute requests to our back-end ...

        Note: The WEB server and database need to be separated, and the WEB server also needs to compile and install MySQL. The important idea of cluster architecture is to find the backbone and extend from the backbone area to the outside.   WEB Server: apache nginx makes three products locally, dedecms work process discuz, which stor ...

Original Link: http://www.pointclouds.org/documentation/tutorials/adding_custom_ptype.php#id1 English original web page view. Add a custom PointT type This document explains not only how to add your own PointT point types, but also what poi ...

Today, I want to make a tool for micro-blog to climb personal pages to satisfy some secrets. So first of all, do what you have to do! Simulated landing... The code is for reference: https://www.douban.com/note/201767245/ I optimized the code, refact ...

Recently, in the day after management, we need to upload some app package files. These packages are within several hundred megabytes in size. Normally, they are uploaded. They are not only very stressful to the server, but also consume server resourc ...

FastDFS is an open source, lightweight, distributed file system that manages files, including file storage, file synchronization, file access (file upload, file download), etc. It solves the problems of mass storage and load balancing.It is especially suitable for online services with files as carriers, such as photo album websites, video webs ...

Reasons for the event Because our company held an algorithm programming contest, randomly draw the following pictures of the algorithm title, think about a period of time before remembering in the book (algorithm diagrams) there is a more consistent algorithm, that is, the dynamic programming "knapsack problem". Knapsack problem is a ...

Project description: This project is a simple Wechat small program customer service message class, to achieve customer service message related functions. The official example of php is wrong, so I won't Tucao anymore. This example uses a developer server instead of a cloud call. Official documents: Customer Service Message Guide Customer Servic ...