Hello everyone! Today, I will guide you through implementing a very useful data validation dropdown menu feature in Excel using C++. Just like in Excel, where you can set cells to only allow selection from predefined values, we can achieve this interactive method in our own programs. This example not only enhances user experience but … Read more
For competition inquiries, please scan the QR code to join the group For an introduction by Teacher Shen, please see:Nanjing Normal University Master Teacher, Xin’ao Coach enters the classroom, students achieve brilliance in competitions1. Do not treat programming as a means to advance in education; otherwise, it will not lead far, and the child will … Read more
Hello everyone! Today we will discuss how to effectively use C++ exception handling in Excel data processing. 1. Why is Exception Handling Necessary? Imagine you are importing a 500MB Excel file and suddenly discover that the file is corrupted—an application without exception handling would crash directly, while one with exception handling can gracefully inform the … Read more
Today, we will explore a cool and practical technology—using C++ Lambda expressions to handle various conditional judgments in Excel. Lambda acts like a small function wizard that can be created anytime and anywhere, making your Excel data processing code super flexible and powerful! 1. Review of Lambda Expression Basics Lambda expressions are anonymous function objects … Read more
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 đź’ˇI’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++?âś… The only designated language for the Informatics Olympiad (NOI/NOIP)âś… … Read more