01-c Language Program Framework

Learning Focus:

• Framework Introduction
• Minimalist C Program

Learning content:

1. Each full C language program must contain and contain only a "main" function, which is the entry and exit of the program, which is always called first when the program executes.

2. #include是一个预编译指令, let the compiler pre-invoke the system built-in function or the custom function before creating the executable program.

3. Simplified C Language Program:

#include <stdio.h>

int main ()

{

printf ("Hello world\n");

return 0;

}

01-c Language Program Framework