Fprintf () annotation in msdn

// Crt_fprintf.c
/* This program uses fprintf to format various
* Data and print it to the file named fprintf. Out. it
* Then displays fprintf. Out on the screen using the System
* Function to invoke the operating-system type command.
*/

# Include <stdio. h>
# Include <process. h>

File * stream;

Int main (void)
{
Int I = 10;
Double fp = 1.5;
Char s [] = "this is a string ";
Char c = '\ n ';

Fopen_s (& stream, "fprintf. Out", "W ");
Fprintf (stream, "% S % C", S, C); // The first parameter indicates the output stream. stderr is a standard error output stream, and the second parameter indicates the output format, the third parameter, such as S and C, indicates the variable to be output.
Fprintf (stream, "% d \ n", I );
Fprintf (stream, "% F \ n", FP );
Fclose (Stream );
System ("type fprintf. Out ");
}