Example/* FOPEN.C: This program opens files named "data" * and "data2".It uses fclose to close "data" and * _fcloseall to close all remaining files. */#include <stdio.h>FILE *stream, *stream2;void main( void ) { int numclosed; /* Open for read (will fail if file "data" does not exist) */ if( (stream = fopen( "data", "r" )) == NULL ) printf( "The file 'data' was not opened\n" ); else printf( "The file 'data' was opened\n" ); /* Open for write */ if( (stream2 = fopen( "data2", "w+" )) == NULL ) printf( "The file 'data2' was not opened\n" ); else printf( "The file 'data2' was opened\n" ); /* Close stream */ if( fclose( stream ) ) printf( "The file 'data' was not closed\n" ); /* All other files are closed: */ numclosed = _fcloseall( ); printf( "Number of files closed by _fcloseall: %u\n", numclosed ); } OutputThe file 'data' was opened The file 'data2' was opened Number of files closed by _fcloseall: 1 看看msdn。
* and "data2".It uses fclose to close "data" and
* _fcloseall to close all remaining files.
*/#include <stdio.h>FILE *stream, *stream2;void main( void )
{
int numclosed; /* Open for read (will fail if file "data" does not exist) */
if( (stream = fopen( "data", "r" )) == NULL )
printf( "The file 'data' was not opened\n" );
else
printf( "The file 'data' was opened\n" ); /* Open for write */
if( (stream2 = fopen( "data2", "w+" )) == NULL )
printf( "The file 'data2' was not opened\n" );
else
printf( "The file 'data2' was opened\n" ); /* Close stream */
if( fclose( stream ) )
printf( "The file 'data' was not closed\n" ); /* All other files are closed: */
numclosed = _fcloseall( );
printf( "Number of files closed by _fcloseall: %u\n", numclosed );
}
OutputThe file 'data' was opened
The file 'data2' was opened
Number of files closed by _fcloseall: 1
看看msdn。
真是无法理解你的点在什么地方
LPCSTR lpPathName, // pointer to name of file to open
int iReadWrite // file access mode
);
GetLastError();