The C language, as a cornerstone of programming, is renowned for its efficiency, flexibility, and close-to-the-metal characteristics. However, deeply learning C is not just about mastering syntax and basic usage; it involves understanding its underlying mechanisms, core philosophies, and how to use it to solve complex problems. Today, we will take a look at the … Read more
Blog Address: https://www.securepulse.website/archives/lan-ren-fu-yin-bu-zao-qi-han-jia-cyu-yan-er-ji-yi-ci-guo-ji-hua-biao Based on Gospel Master’s experience with the C language level two, passing level two is not difficult; it’s just that everyone lacks a systematic way of learning and planning. Now, here it is! This plan does not require early mornings or late nights! The goal is to pass level two in one … Read more
Click the “blue text” above Follow us! The variable modified by volatile indicates that this variable may be unexpectedly changed. For programmers, this keyword is quite common in microcontroller programming. Volatile means changeable and unstable. In fact, many people may have never seen this keyword and are unaware of its existence. There are also many … Read more
▍Note: If you need the Word source file, please reply “Admin” in the public account backend to get the material. *Example 70: Software Debounce Independent Keyboard Input Experiment #include<reg51.h> // Include header file defining 51 microcontroller registers sbit S1=P1^4; // Define S1 pin as P1.4 sbit LED0=P3^0; // Define LED0 pin as P3.0 /* Function: … Read more
Introduction In microcontroller programming, the use of local variables is fundamental for data manipulation within functions or code blocks. The lifecycle of local variables starts from their declaration and ends when the containing function or code block completes execution. During this process, local variables may be read and written multiple times to store and pass … Read more
Hello everyone! Today we are going to talk about one of the most powerful yet confusing features of the C language for beginners – pointers. Through several practical examples, let’s master this core concept step by step. A pointer is essentially a variable that stores a memory address. Imagine it like the house number, telling … Read more
Hello everyone, I am Teacher Xiao Yu! Today, I will lead you to explore a very interesting topic – the application of C language in graphics. As a programmer, being able to create stunning 3D worlds with code is a really cool thing! We will start with the basic principles of ray tracing and gradually … Read more
First, let’s pose a question: what do you think the output of the following code will be? /* A simple example code */ #include <stdio.h> int main(int argc, char const *argv[]) { int a = -10; int b = 10; int c = -3; int d = 3; printf("Result 1: %d\n", a%d); printf("Result 2: %d\n", … Read more
In the world of C programming, code safety and resource management have always been crucial topics. Today, we will focus on a feature that is expected to become an important part of future versions of C language: ‘defer’. We will explore how to apply this feature in existing tools and compilers, as well as its … Read more
