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Course Introduction：This article discusses in depth how to use the pyads library to efficiently process PLC real-time data notifications. For high concurrency and large data volume scenarios, we propose and elaborate on class encapsulation-based solutions to avoid global variables and achieve clearer state management and data accumulation. At the same time, the article also introduces key techniques for optimizing data parsing performance, including batch processing using raw byte data and NumPy, aiming to help developers build a robust and high-performance PLC data acquisition system.

2025-08-11 comment 0  250

Course Introduction：This tutorial explores how to efficiently and Pythonically process real-time, large-scale notification data from PLCs in PyADS applications, avoiding the use of global variables. By introducing a class-based callback function management model, the article elaborates on how to safely integrate callback data into application state and provides strategies to optimize data conversion performance, especially for high-throughput data acquisition scenarios.

2025-08-13 comment 0  980

Course Introduction：This article aims to explore how to efficiently process ADS notification callback data from PLC in Pyads applications, especially when processing large and high-frequency data, avoid using global variables, and use Pythonic class encapsulation method to manage state. At the same time, the article will also explain in-depth how to optimize the conversion of byte data to Python type to improve the performance of large-scale data processing.

2025-08-11 comment 0  444

Course Introduction：When the business logic is complex, the service class should be used to extract the logic beyond HTTP processing in the controller (such as user registration, pricing calculation); 2. When multiple controllers, tasks or commands need to reuse the same logic (such as data synchronization, report generation), the service class can avoid code duplication; 3. When better testability is required, the service class can conduct unit testing independently without relying on HTTP requests; 4. When multiple operations or services need to be coordinated (such as inventory, payment, notification, etc. in order processing), the service class can effectively organize the process. Service classes are usually placed in app/Services or subdirectories grouped by functions, and should be used through dependency injection to avoid excessive bloat and ensure single responsibilities. Therefore, as long as the controller is performing actual business work instead

2025-08-06 comment 0  406

Course Introduction：Alipay PHP...

2025-04-01 comment 0  1566

Course Elementary  13888

Course Introduction：Scala Tutorial Scala is a multi-paradigm programming language, designed to integrate various features of object-oriented programming and functional programming.

Course Elementary  82443

Course Introduction："CSS Online Manual" is the official CSS online reference manual. This CSS online development manual contains various CSS properties, definitions, usage methods, example operations, etc. It is an indispensable online query manual for WEB programming learners and developers! CSS: Cascading Style Sheets (English full name: Cascading Style Sheets) is an application used to express HTML (Standard Universal Markup Language).

Course Elementary  13237

Course Introduction：SVG is a markup language for vector graphics in HTML5. It maintains powerful drawing capabilities and at the same time has a very high-end interface to operate graphics by directly operating Dom nodes. This "SVG Tutorial" is intended to allow students to master the SVG language and some of its corresponding APIs, combined with the knowledge of 2D drawing, so that students can render and control complex graphics on the page.

Course Elementary  24695

Course Introduction：In the "AngularJS Chinese Reference Manual", AngularJS extends HTML with new attributes and expressions. AngularJS can build a single page application (SPAs: Single Page Applications). AngularJS is very easy to learn.

Course Elementary  27539

Course Introduction：Go is a new language, a concurrent, garbage-collected, fast-compiled language. It can compile a large Go program in a few seconds on a single computer. Go provides a model for software construction that makes dependency analysis easier and avoids most C-style include files and library headers. Go is a statically typed language, and its type system has no hierarchy. Therefore users do not need to spend time defining relationships between types, which feels more lightweight than typical object-oriented languages. Go is a completely garbage-collected language and provides basic support for concurrent execution and communication. By its design, Go is intended to provide a method for constructing system software on multi-core machines.