C 语言读取二进制文件内容

vtguru

#include <fcntl.h>      /* Needed only for _O_RDWR definition */
#include <io.h>
#include <stdlib.h>
#include <stdio.h>
#include <share.h>

char buffer[60000];

int main( void )
{
   int fh;
   unsigned int nbytes = 60000, bytesread;

   /* Open file for input: */
   fh = fh1 = _open( "file.bin", _O_RDONLY | _O_BINARY);
   if( !fh )
   {
      perror( "open failed on input file" );
      exit( 1 );
   }

   /* Read in input: */
   if( ( bytesread = _read( fh, buffer, nbytes ) ) <= 0 )
      perror( "Problem reading file" );
   else
      printf( "Read %u bytes from file\n", bytesread );

   _close( fh );
}