Hello everyone! Today, I will guide you through implementing a very useful data grouping feature in C++ similar to that in Excel. 1. Basic Features of Excel’s Grouping Function The grouping function in Excel has three main features: Hierarchical Structure: Allows for the creation of multi-level groups Expand/Collapse: Toggle the display of details at any … Read more
C++ Guide:<span>wstring</span> – Wide Character String Type 1. What is <span>wstring</span>? <span>std::wstring</span> is a wide character (wchar_t) string type provided by the C++ standard library. Unlike <span>std::string</span>, <span>std::wstring</span> is used to store Unicode characters, making it suitable for applications that require multilingual support, such as Chinese, Japanese, Korean, and other non-ASCII languages. 2. Underlying Data … Read more
C++ References and Reference Types: Efficient Use of Pointers In C++, both references and pointers are tools used for indirect access to variables, but they have significant differences. This article will detail references in C++ and their differences from pointers, along with code examples to help beginners understand. What is a Reference? In C++, a … Read more
Learning Objectives: Fundamentals of C++ Programming Language Learning Content: Basic Syntax This article is aimed at beginners and introduces the basic usage of C++, including control statements, commonly used data structures from the standard library, etc., to help quickly get started with coding challenges. For example: Standard Output Control Statements Basic Data Structures Summary Standard … Read more
Follow me to achieve: cognitive evolution, capability evolution, and wealth evolution!This article focuses on C++ technology, part of the professional capability evolution series.Introduction:Do you know the concept of ‘Polymorphism’, one of the three main characteristics of C++?What are its functions and benefits?Part 1:Concept of PolymorphismPolymorphism is the third core characteristic of object-oriented programming, allowing objects … Read more
Dear parents 💡I’ve heard that many parents have started planning a “programming path” for their childrenBut when faced with C++, a subject that sounds very hardcoreisn’t it both exciting and a bit confusing? How to scientifically plan a children’s C++ learning path 👇🌟 Why choose C++?✅ The only designated language for the Informatics Olympiad (NOI/NOIP)✅ … Read more
The “C++ Basics” series of blogs serves as a reference to the book “C++ Primer (5th Edition)” (C++11 Standard), which includes my own study notes. 1. Type Aliases Type aliases are names that serve as synonyms for certain types. There are many benefits to using type aliases; they simplify complex type names, making them clearer … Read more
Why Do We Need Callback Functions? In traditional synchronous programming, we directly call functions and wait for their return results. This pattern is simple and intuitive, but when faced with time-consuming operations (such as I/O operations, network requests, etc.), the thread gets blocked, leading to low resource utilization. Callback functions are key to solving the … Read more
Inheritance and Derivation: The Core Mechanism of Object-Oriented Programming in C++ In object-oriented programming (OOP), inheritance is an important concept that allows us to create a class (subclass) that inherits properties and methods from another class (superclass). This approach enables code reusability and helps build more complex and feature-rich programs. What is Inheritance? In C++, … Read more
1Building Systems:The Migration Costs of the Warring States Period Fragmentation of Multiple Tools CMake/Bazel/Meson are in a three-way standoff: Syntax differences require relearning configuration logic for cross-project collaboration (e.g., CMake’s <span>target_link_libraries</span> conflicts with Bazel’s <span>deps</span> rule). Historical baggage hampers modernization: Legacy projects depend on Autotools-generated <span>configure</span> scripts, which have poor compatibility with modern IDEs (like … Read more