In the laboratory of Professor Zhang Yihui at Tsinghua University, a robot weighing only 25 grams and the size of a palm is performing a “transformation”: one moment it hovers like a drone in the air, and the next moment it retracts its rotors and transforms into a “small car” speeding on the ground.What kind … Read more
In kitchen spaces and balconies, whether large or small appliances take up a lot of space. Cluttered appliances on the countertop or placed against the wall can make the space look very messy and uncomfortable. Therefore, embedded design addresses this pain point by concealing all appliances within cabinets or walls. So, how should the design … Read more
Click the blue text↑ to follow us Recently, the OpenHarmony Developer Conference 2025 (OHDC.2025, hereinafter referred to as “the Conference”) was held in Shenzhen. The Conference officially released the open-source HarmonyOS 5.1 Release version, held ceremonies such as the “Launch of OpenHarmony Application Technology Component Co-construction” and “Launch of OpenHarmony AI Agent Technology Co-construction”, and … Read more
In computer science, string matching is an important area of research. We often need to find the position of a pattern string within a text string. While there are various methods to achieve this, today we will focus on an efficient algorithm—the KMP (Knuth-Morris-Pratt) algorithm. Introduction to KMP Algorithm The KMP algorithm was proposed by … Read more
Hello everyone! I am Xiaokang. Today, we are going to discuss a topic that sounds dull but actually hides a lot of secrets — C language macros. ⚡ Friendly Reminder: Follow me to stay updated! There will be more hardcore technical articles shared later, guiding you through Linux C/C++ programming! 😆 What? Macros? Isn’t that … Read more
Error handling is a crucial part of programming. Although the C language does not have a built-in exception handling mechanism, we can still implement effective error management through various methods. This article will detail error handling in C and common practices, providing code examples to aid understanding. 1. Types of Errors In C, there are … Read more
Building and Searching a Binary Search Tree in C Language Introduction A Binary Search Tree (BST) is a special type of binary tree that has the following properties: Each node has a value. For each node, all values in its left subtree are less than the value of that node. For each node, all values … Read more
String Handling in C: Character Arrays and String Functions In C, strings are not a distinct data type but exist as character arrays. Understanding how to use character arrays and related string functions is crucial for writing effective C programs. This article will provide a detailed overview of string handling in C, including the definition … Read more
In multi-process or multi-thread programming, file read and write operations may lead to data inconsistency. To avoid this situation, the C language provides a file locking mechanism to control access to the same file. This article will detail the file locking and file sharing mechanisms in C language and demonstrate them through code examples. Basic … Read more
In the development of embedded systems and operating systems, interrupts are an important mechanism. They allow programs to respond immediately to specific events without the need to constantly poll device status. This article will provide a detailed introduction to interrupt handling in C language and its related concepts, suitable for beginners to learn. What is … Read more