Classic tutorial on getting started with C language-C++-php.cn

Home

Backend Development

C++

c语言入门经典教程

Charles William Harris

Apr 04, 2025 am 09:00 AM

linuxwindowsc languageoperating systemailspWhy

C is a universal programming language developed by Dennis Rich in 1972 and is known for its efficiency, portability and widespread use. Reasons for learning C include its fundamentality (the foundation of many operating systems and applications), an in-depth understanding of how the internal workings of computer systems are, and its fast and efficient features (for real-time systems and embedded device programming).

c语言入门经典教程

Classic tutorial for getting started with C language

What is C language?

C is a common programming language developed by Dennis Rich in 1972. It is known for its efficiency, portability and wide range of applications.

Why learn C?

The C language is the basis of many operating systems and applications, such as Linux, UNIX, and Windows.
Understanding C language can help to gain an in-depth understanding of how computer systems work internally.
The C language is known for its speed and efficiency, making it ideal for programming real-time systems and embedded devices.

The basics of C language

Data Type: C language provides various data types, such as integers, characters, and floating point numbers.
Variables: Variables store data, and you can declare them using data types.
Operator: Operators are used to perform mathematical and logical operations.
Statement: Statement is used to control program flow.
Function: A function is a set of encapsulated blocks of code that are used to perform specific tasks.

C language program structure

A basic C program usually contains the following parts:

The header file contains declarations of functions and data types.
The main function is the entry point of the program.
Other functions perform specific tasks.
Global variables are visible throughout the program.
Local variables are only visible within the scope of the function.

Steps to learn C language

The basics of familiarity with C language.
Practice writing simple programs.
Learn advanced concepts such as pointers and data structures.
Write more complex and useful programs.

resource

[Official C Language Tutorial](https://www.tutorialspoint.com/cprogramming/)
[C Programming, A Modern Approach](https://www.amazon.com/Programming-Modern-Approach-2nd/dp/0133378713)
[HackerRank C Language Challenge](https://www.hackerrank.com/domains/c)

The above is the detailed content of c语言入门经典教程. For more information, please follow other related articles on the PHP Chinese website!

Statement

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

C# and C : Exploring the Different ParadigmsMay 08, 2025 am 12:06 AM

The main differences between C# and C are memory management, polymorphism implementation and performance optimization. 1) C# uses a garbage collector to automatically manage memory, while C needs to be managed manually. 2) C# realizes polymorphism through interfaces and virtual methods, and C uses virtual functions and pure virtual functions. 3) The performance optimization of C# depends on structure and parallel programming, while C is implemented through inline functions and multithreading.

C XML Parsing: Techniques and Best PracticesMay 07, 2025 am 12:06 AM

The DOM and SAX methods can be used to parse XML data in C. 1) DOM parsing loads XML into memory, suitable for small files, but may take up a lot of memory. 2) SAX parsing is event-driven and is suitable for large files, but cannot be accessed randomly. Choosing the right method and optimizing the code can improve efficiency.

C in Specific Domains: Exploring Its StrongholdsMay 06, 2025 am 12:08 AM

C is widely used in the fields of game development, embedded systems, financial transactions and scientific computing, due to its high performance and flexibility. 1) In game development, C is used for efficient graphics rendering and real-time computing. 2) In embedded systems, C's memory management and hardware control capabilities make it the first choice. 3) In the field of financial transactions, C's high performance meets the needs of real-time computing. 4) In scientific computing, C's efficient algorithm implementation and data processing capabilities are fully reflected.

Debunking the Myths: Is C Really a Dead Language?May 05, 2025 am 12:11 AM

C is not dead, but has flourished in many key areas: 1) game development, 2) system programming, 3) high-performance computing, 4) browsers and network applications, C is still the mainstream choice, showing its strong vitality and application scenarios.

C# vs. C : A Comparative Analysis of Programming LanguagesMay 04, 2025 am 12:03 AM

The main differences between C# and C are syntax, memory management and performance: 1) C# syntax is modern, supports lambda and LINQ, and C retains C features and supports templates. 2) C# automatically manages memory, C needs to be managed manually. 3) C performance is better than C#, but C# performance is also being optimized.

Building XML Applications with C : Practical ExamplesMay 03, 2025 am 12:16 AM

You can use the TinyXML, Pugixml, or libxml2 libraries to process XML data in C. 1) Parse XML files: Use DOM or SAX methods, DOM is suitable for small files, and SAX is suitable for large files. 2) Generate XML file: convert the data structure into XML format and write to the file. Through these steps, XML data can be effectively managed and manipulated.

XML in C : Handling Complex Data StructuresMay 02, 2025 am 12:04 AM

Working with XML data structures in C can use the TinyXML or pugixml library. 1) Use the pugixml library to parse and generate XML files. 2) Handle complex nested XML elements, such as book information. 3) Optimize XML processing code, and it is recommended to use efficient libraries and streaming parsing. Through these steps, XML data can be processed efficiently.

C and Performance: Where It Still DominatesMay 01, 2025 am 12:14 AM

C still dominates performance optimization because its low-level memory management and efficient execution capabilities make it indispensable in game development, financial transaction systems and embedded systems. Specifically, it is manifested as: 1) In game development, C's low-level memory management and efficient execution capabilities make it the preferred language for game engine development; 2) In financial transaction systems, C's performance advantages ensure extremely low latency and high throughput; 3) In embedded systems, C's low-level memory management and efficient execution capabilities make it very popular in resource-constrained environments.

See all articles