2025 National Computer Level Examination Level 2 C Language Preparation Guide: Past Exam Questions, Chapter Question Bank, and Mock Tests

2025 National Computer Level Examination Level 2 C Language Preparation Guide: Past Exam Questions, Chapter Question Bank, and Mock Tests

【Computer Level 2 C Language Preparation Strategy|30-Day Efficient Sprint Guide】 1. Clarify Key Exam PointsThe Level 2 C Language examination includes multiple-choice questions (40 points) and practical questions (60 points). Key areas to master include: data types, loop structures, arrays, functions, pointers, structures, and file operations. 2. Phased Preparation Plan Foundation Stage (10 days) Thoroughly … Read more

Essential Knowledge for Programmers: Flexible Arrays in C Language Made Simple!

Essential Knowledge for Programmers: Flexible Arrays in C Language Made Simple!

Hello everyone, I am Xiaokang. Today, let’s talk about a seemingly sophisticated yet super practical concept in C language—flexible arrays. Don’t be intimidated by the name; what does “flexible” mean? Simply put, it refers to an array with variable size and undefined length. Mastering this technique can significantly enhance your programming skills! ⚡ Friendly Reminder: … Read more

Programming Techniques and Methods for Implementing Interlocking Logic in PLCs

Programming Techniques and Methods for Implementing Interlocking Logic in PLCs

Hello everyone! Today I want to talk to you about the implementation of interlocking logic in PLCs. To be honest, this is extremely important in automation control! What is interlocking? Simply put, it is a protective mechanism to prevent interference between devices. If done well, safety is guaranteed; if done poorly—well, the consequences are unimaginable… … Read more

Advanced Embedded Programming Techniques: Data-Driven Programming

Advanced Embedded Programming Techniques: Data-Driven Programming

1. Introduction Today, I would like to recommend a piece of pure instrumental music that has truly touched the author; it might just be one of those few pieces. Alright, today I will introduce the technique of data-driven programming, which can help everyone write high-quality code in their daily work. 2. What is Data-Driven Programming? … Read more

Siemens PLC System Optimization: Key Technical Solutions to Enhance Industrial Automation Efficiency

Siemens PLC System Optimization: Key Technical Solutions to Enhance Industrial Automation Efficiency

▼ Click the card below to follow me ▲ Click the card above to follow me Siemens PLC System Optimization: Key Technical Solutions to Enhance Industrial Automation Efficiency Recently, during a technical transformation at an injection molding factory, it was found that many automation devices had issues such as slow response and complicated programs. By … Read more

Python Memory Management: The Core of Performance Optimization

Python Memory Management: The Core of Performance Optimization

Hello everyone, I am Mo Yun. Today we will discuss a deeper but very important topic: Python's memory management. Although Python automatically handles memory allocation and deallocation for us, understanding how it works is crucial for writing efficient code. Don't worry, I will use simple metaphors and examples to help you easily understand this seemingly … Read more

Must-See! Four Key Development Techniques for Microcontrollers

Must-See! Four Key Development Techniques for Microcontrollers

Must-See! Four Key Development Techniques for Microcontrollers In microcontroller application development, issues such as code efficiency, anti-interference capability, and reliability still pose challenges. Here are several fundamental techniques that should be mastered in microcontroller development. 01 How to Reduce Bugs in Programs To reduce bugs in programs, one should first consider the following out-of-range management … Read more

Handling Invalid Input in C Language

Handling Invalid Input in C Language

Handling Invalid Input in C Language Welcome to today’s C language class. The topic we will discuss today is – how to handle invalid input in C language. When we are writing programs, we are bound to make mistakes and misunderstandings, which can lead to program crashes and even security issues. Therefore, handling invalid input … Read more

Improving C Language Programming Efficiency: Tips and Methods

Improving C Language Programming Efficiency: Tips and Methods

Everyone engaged in embedded development writes code in C language. Many people are accustomed to using if and switch, and when defining data structures, they only use character types, integer types, arrays, and bits; rarely utilizing structs, unions, or enums. Today, I will summarize my own set of C programming methods. 1. Clever Use of … Read more

Dynamic APP Loading Techniques for Microcontrollers

Dynamic APP Loading Techniques for Microcontrollers

Dynamic APP loading techniques for microcontrollers are similar to applications on mobile phones and computers, allowing programs to be loaded from various sources such as SD cards, NAND, NOR, eMMC, etc., into execution spaces like SRAM, SDRAM, QSPI Flash, and internal Flash. Moreover, if MPU support is available, it can isolate APPs; if an APP … Read more