DF PROFI II is a high-performance PROFIBUS DP/DPV1 interface card that can be used as a DP master or DP slave, capable of being rapidly and flexibly applied in various automation industries. It supports a wide range of applications across different fields. In addition to standard PROFIBUS DP/DPV1 services, it also provides a watchdog function, … Read more
Many parents of elementary school students have questions when choosing a programming language for their children: Which one should we choose for our child, Python or C++? Is C++ more advanced than Python? Some parents are unsure about the differences between Python and C++, and without considering if their child is suitable for it, they … Read more
Today, I will share some classic C++ interview questions, hoping they can help everyone. 1. The relationship between new, delete, malloc, and free malloc and free are standard library functions in C/C++ language, while new/delete are operators in C++. new calls the constructor, while delete will call the destructor of the object, whereas free only … Read more
1. C++ Constants A constant is a fixed value that does not change during program execution. It can be of any basic data type and can be classified into integer numbers, floating-point numbers, characters, strings, and boolean values. 01 — Integers Integer constants can be in decimal, octal, or hexadecimal form. The prefix specifies the … Read more
Basic Concepts of Program Design 1、int i=1; void main(){ inti=i; //i is an undefined value } 2、Type Conversion C++ defines a set of standard conversions between built-in type objects: If one operand’s type is long double, the other operand will be converted to long double If neither is long double, if one is double, the … Read more
[Help on how to add a table of contents] Data Type Explanation Differences Between C and C++ C is a structured language that focuses on algorithms and data structures. The primary consideration in designing C programs is how to process input to produce output through a process. On the other hand, C++ adds classes on … Read more
PrefacePREFACE C++ is a programming language that introduces object-oriented mechanisms based on C. C++ inherits most features of C. On one hand, C++ treats C as its subset, allowing compatibility with C; on the other hand, C++ supports object-oriented programming, such as the concept and properties of classes. This is a significant improvement over C. … Read more
Source: Content from the internet, thank you! C++ Comments Comments in a program are explanatory statements, and you can include comments in C++ code to enhance the readability of the source code. All programming languages allow some form of comments. C++ supports single-line comments and multi-line comments. All characters in a comment will be ignored … Read more
There are three methods to convert an integer to a string in C++: Using the stringstream class Using the to_string() method Using boost.lexical_cast 👇Click to receive👇 👉C Language Knowledge Material Collection Using the stringstream class to convert an integer to a string. The stringstream class is defined in the header file. It is a stream … Read more
Book Giveaway at the End 01 A Classic C++ Interview Question Is it difficult for beginners to pass interviews at major companies? Let’s first look at a classic C++ interview question. “Can you explain the principles and uses of smart pointers?” If students have memorized the strategies, they can probably say that smart pointers are … Read more