First knowledge of C language -- what is C language

1.C Language is a general computer programming language , Widely used in the underlying development .C The design goal of the language is to provide a way to compile 、 Processing low-level memory 、 Generate a small amount of machine code and a programming language that can run without any support of the running environment .
first C Language program

#include <stdio.h>
int main()
{
    
    printf("hello world\n");
    printf("he he\n");
    return 0; }
// explain ：
//main Function is the entry of a program 
// In a project main There is and only one function 

2. Even though C Language provides many low-level processing functions , But it still has good cross platform characteristics , Written in a standard specification C Language programs can be compiled on many computer platforms , It even includes some embedded processors （ Single chip computer MCU） And supercomputers .

3. The 1980s , In order to avoid the use of C There are differences in language grammar , By the National Bureau of standards C Language has developed a complete set of American national standard grammar , be called ANSI C, As C The original standard of language . [1] at present 2011 year 12 month 8 Japan , International Organization for Standardization （ISO） And the International Electrotechnical Commission （IEC） released C11 The standard is C The third official standard of language , It's also C The latest standard of language , The standard better supports Chinese character function name and Chinese character identifier , To a certain extent, Chinese character programming is realized .

4.C Language is a process oriented computer programming language , And C++,Java Object oriented programming languages such as .

5. Its compiler mainly includes Clang、GCC、WIN-TC、SUBLIME、MSVC、Turbo C etc. .