Hello everyone, I am your PLC teacher, Dog Brother. Today we will talk about the status word and control word in Siemens PLC. These two "words" are important roles in PLC programming! They act like the "eyes" and "hands" of the PLC, helping us monitor and control the operation state of the PLC. Mastering them … Read more
The “Data Heart” of Embedded Systems In today’s digital wave, embedded systems are like ubiquitous “behind-the-scenes heroes,” deeply integrated into our lives. From the thoughtful control of smart homes to the precise operation of industrial automation, and the life-saving capabilities of medical devices, embedded systems play a crucial role. Among them, embedded database systems act … Read more
Type Deduction and Auto Keyword in C++: Master Unknown Types In the world of C++ programming, type safety is a very important feature. However, sometimes manually specifying types can become cumbersome and error-prone when dealing with complex expressions or function return types. At this point, the auto keyword acts like a helpful assistant, helping us … Read more
C++ Standard Template Library (STL): Basics of Containers, Algorithms, and Iterators The C++ Standard Template Library (STL) is a powerful toolkit that provides a range of efficient components to help us implement complex data structures and algorithms more easily. STL mainly consists of three parts: containers, algorithms, and iterators. This article will introduce the basic … Read more
Overview of C++: Origins, Features, and Development Origins The founder of C++ is Bjarne Stroustrup from Bell Labs, who began designing and implementing this programming language in 1979. C++ was developed based on the C language, originally intended to address some complexity issues that may arise in large software development. In 1985, Stroustrup published the … Read more
STL stands for Standard Template Library, one of the three major components of C++. Alex is the core designer of STL. He was born in Moscow in 1950 and later moved to the United States, where he worked at companies like Adobe and A9.com. While working at Adobe, he was a colleague and good friend … Read more
Embedded systems typically have characteristics such as resource constraints and low-level hardware operations, and the C++ language, as an efficient programming language, can be used to quickly develop efficient code in embedded systems. For example, C++ is widely used as a development language in Linux systems… C++ can fully utilize the concept of object-oriented programming, … Read more
1.About This Book Access method at the end of the article!!! About “Comprehensive C/C++ and Embedded Software Development Interview Questions.pdf” 1. Introduction The content of this book is compiled from the frequently encountered written and interview questions during the early recruitment phase of the 2021 autumn recruitment by myself and my classmates, as well as … Read more
1. Class Reflection After analyzing simple classes and structures, we can further analyze the reflection of ordinary classes. There are generally several situations for reflecting a class: 1. Creating and matching objects by class name 2. Reflecting class member variables 3. Reflecting class member functions 4. Handling class inheritance relationships. Here, we will only deal … Read more
Hello everyone, I am Village Chief Axiang.This is the 42nd original article from the Village Chief.According to our previous agreement, I will gradually bring youarticles combining software and hardware.The so-called software refers to more directional suggestions and planning; the so-called hardware refers to technical content. This is also an article that digs a pit, meaning … Read more