This ruler can be used for taking notes and drawing patterns, and can also be used in self-study classes for drawing little figures and playing around. It is perfect for students doing homework, and for drawing diagrams. The author, being a Virgo, has meticulously designed every detail of the patterns, various installation methods, eye-catching colors, … Read more
Exception specifications were introduced in C++98 and replaced by noexcept in C++11. Exception specifications serve to restrict the exceptions thrown by functions, enhancing program readability.However, if a function throws an exception that is not allowed by its exception specification, the program will call the unexpected function, which by default calls terminate, causing the program to … Read more
Common Knowledge: Template code is instantiated only when it is actually used. Class templates support partial specialization, while function templates do not support partial specialization (similar partial specialization can be achieved through function overloading). The template code generally goes through the following processes during compilation: 1. Syntax Checking Phase Check if the syntax is correct. … Read more
The two core features of Flask: • Routing: Mapping URLs to Python functions • Template: Jinja2 template system for rendering HTML pages You will learn how to build web pages, pass values, template inheritance, static files, and other core knowledge. Part One: Flask Routing 1. What is Routing? Routing defines which function should handle a … Read more
In the field of embedded development, the C language holds a dominant position. However, C++ has become an indispensable choice in embedded development due to its powerful object-oriented features, efficient low-level control capabilities, and rich standard library support. Core Advantages of C++ The Power of Object-Oriented Programming The object-oriented features of C++ have brought revolutionary … Read more
Abstract A matrix is a fundamental data structure in linear algebra and scientific computing, widely used in numerical analysis, engineering calculations, and artificial intelligence algorithms. This article presents a generic matrix class designed and implemented using C++ templates, which includes core functionalities such as matrix generation, output, addition, subtraction, multiplication, transposition, inversion, adjoint matrix, and … Read more
Inheritance One of the important features of C++ is code reuse. Through the inheritance mechanism, new data types can be defined using existing data types. The new data type not only has the members of the old class but also has new members. Class B inherits from class A, also known as deriving class B … Read more
“C++ Primer, Fifth Edition” is a classic textbook in the field of C++, comprehensively covering the core features of the C++11 standard, balancing syntax details with programming practices, making it suitable for both beginners and experienced developers looking to fill gaps in their knowledge.Below, we extract the core knowledge points of the book from four … Read more
1. Default empty constructors are not necessaryCompared to other constructors, the characteristic of a default empty constructor is that it can construct an object without requiring any parameters.However, we cannot always create objects this way in practice. For example, when creating an “ID card” object, the ID number is always required. Therefore, providing a default … Read more
C++ (C Plus Plus) is an object-oriented high-level programming language that extends and upgrades the C language. It was developed in 1979 by Bjarne Stroustrup at AT&T Bell Labs. Initially, C++ was referred to as “C With Classes”. It is a general-purpose programming language that supports static data type checking and multiple programming paradigms, including … Read more