stdin, stdout, stderr

stdin, stdout, stderr

1 stdin keyboard

2 stdout Display

3 stderr Error

1 #define_crt_secure_no_warnings2 3#include <stdio.h>4#include <stdlib.h>5 6 Main ()7 {8     //stderr always on the monitor, if redirected, StdOut will be written to disk9     //Error messages can be written to stderr and will be automatically output on the monitor .Ten      Onefprintf (stderr,"stderr The error you encountered is%s, the retry count is%d\n","Insufficient Authority",3); A  -fprintf (stdout,"stdout The error you encountered is%s, the retry count is%d\n","Insufficient Authority",3); -  theSystem"Pause"); -}

StdIn, stdout, stderr