There are three ways:
1. Start debugging Don’t use this button: directly Ctrl+F5 start. The effect is as follows:


2. Add the system (” pause “);
#include< stdio.h>

the main () {
printf (” Hello, World! \n”);
system (” pause “);
}
The effect is as follows:


3. Add _getch ();
#include< stdio.h>
#include < conio.h>

the main () {
printf (” Hello, World! \n”);
_getch ();
}
The effect is as follows: