Article From:https://www.cnblogs.com/oddcat/p/9688741.html

 

Let’s take HelloWorld as a simple example. The program prints a line of text at the terminal:Hello World! 

The code is as follows:

#include <stdio.h>

int main(){
    printf("Hello World!\n");
}

1)  #include <stdio.h> :

Preprocessing part;

2) int main(){} :

The main function of the program.

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