Initial C language---How to write a Hello Word!

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Preface

C language is a general computer programming language that is widely used in low-level development. The design goal of the C language is to provide a programming language that can be easily
compiled, handle low-level memory, generate a small amount of machine code, and can run without any runtime environment support
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1. What is C language?

1. Language---a tool for communication 2. Chinese---English--the language for communication between people 3. C/C++/Java....Thousands of computer languages----- -Language for communication between humans and computers---Computer language

2. How to write the first C language program

How to write the first C language code - - - - First, create a project

Software used: vs2019 (community version) vs2022

1. Create a project

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2.Create .C file

In a C language program, there are two types of files : .h header header file .c source file

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3. Then write the code

The written C language code is text information, and these codes cannot be run directly.
C —> Compile + Link ----> Executable program — test.exe
vs2019 — Integrated development environment — Editing, compiling, linking, running, debugging and other functions (CTRL+ F5 to run)