How to scientifically develop a Node addon

In my last article about NAPI, I introduced how I converted a C library into a node addon as a novice. This article mainly conducts systematic study and practice on node addon. What are Addons Simply put, node.js is written in C++, so you can increase the capabilities of node through dynamic libraries (dll dylib). […]

js and vue add watermark

Native js use <!DOCTYPE html> <html lang=”en”> <head> <meta charset=”UTF-8″> <meta http-equiv=”X-UA-Compatible” content=”IE=edge”> <meta name=”viewport” content=”width=device-width, initial-scale=1.0″> <title>Strategy for adding watermark in native JS</title> <!– quote watermark –> <script src=”./js/warterMarkJS.js”></script> <style> </style> </head> <body style=”height: 600px”> <!–Set watermark watermark container –> <div class=”elementdiv”></div> <script> //Set watermark name watermark(‘Shuixiangmuyu’, “SXMY”) </script> </body> </html> warterMarkJS.js /*watermark configuration*/ […]

About socket address multiplexing and port multiplexing technology and UDP concurrency

1. Socket quintuple linux: setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,(const void *) &reuse, sizeof(int)); setsockopt(fd, SOL_SOCKET, SO_REUSEPORT,(const void *) &reuse, sizeof(int)); windows: setsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR,(const char*) &reuse, sizeof(int)); Socket is a system-level resource (different from process level and thread level, it is globally unique on this machine,, which can be artificially bound to local ip and port, […]

JavaSwing cycle single ping network IP address in 5 seconds, add adaptive background image, etc.

Requirements: 6 AI cameras and 1 server network status monitoring The effect picture above is originally an adaptive background picture, but it is too cumbersome to calculate the coordinates according to the size of the window for a few buttons of single Ping IP. Simply frame the form directly, and encounter an error that […]

Single sign-on 3: Add RBAC permission verification model function understanding and implementation demo

1. RBAC authority model RBAC (Role-Based Access Control) is a role-based access control model, which is used to manage user permissions and access control in the system. It clearly defines the relationship among users, roles and permissions to achieve flexible permission management and control. 1.1. The RBAC model mainly includes the following core concepts: 1. […]

Spring Boot integrated process engine Flowable (with source code address)

1. Import dependencies flowable depends on: <dependency> <groupId>org.flowable</groupId> <artifactId>flowable-spring-boot-starter</artifactId> <version>6.7.2</version> </dependency> pom.xml: <?xml version=”1.0″ encoding=”UTF-8″?> <project xmlns=”″ xmlns:xsi=”” xsi:schemaLocation=””> <modelVersion>4.0.0</modelVersion> <groupId>org.example</groupId> <artifactId>flowable_study</artifactId> <version>1.0-SNAPSHOT</version> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.6.6</version> </parent> <properties> <maven.compiler.source>11</maven.compiler.source> <>11</> </properties> <dependencies> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>8.0.29</version> </dependency> <dependency> <groupId></groupId> <artifactId>druid-spring-boot-starter</artifactId> <version>1.2.8</version> </dependency> <dependency> <groupId>org.flowable</groupId> <artifactId>flowable-spring-boot-starter</artifactId> <version>6.7.2</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>cn.hutool</groupId> […]

C# cad secondary development class library dialog box to add the frame interface to the class library

C# cad secondary development class library dialog box to add the frame interface to the class library using System; using System.Collections.Generic; using System. ComponentModel; using System.Data; using System. Drawing; using System. Linq; using System. Text; using System. Threading. Tasks; using System. Windows. Forms; namespace_19 dialog example { public partial class Form1 : Form { public […]

PaddleNLP: Conversational Bots Based on LLaMA and Vicuna

This article is from the AlStudio community boutique project, [click here] to view more boutique content >>> Introduction Using PaddleNLP and Vicuna to pre-train large language model parameters to implement LLaMA model-based conversational robots. PS. Please use the V100 32G or higher environment for this project and run it with the latest development version of […]