> i write binary file
> the source code is below
> //--------------------------------------
> #include <stdio.h>
> #include <io.h>
> #include <sys/types.h>
> #include <sys/stat.h>
> #include <fcntl.h>
> #include <memory.h>

> int main( )
> {
>    char l_bbbuf[ 10 ];
>    memset( l_bbbuf, 0x0d, sizeof( l_bbbuf ) );

>    FILE* l_hFile;
>    l_hFile = fopen( "test.dat", "wb" );

>    for( int i = 0; i < 10 ; i++ )
>    fputc( l_bbbuf[i], l_hFile );

>    fclose( l_hFile );
> }
> //------------------------------------------------
> this is all. i want write 0x0d in file
> after this program run, i open the "test.dat" and show hex
> viewer the data.
> that is 0x0d 0x0a 0x0d 0x0a......0x0a