检测文件存在的四种方法。test if a File exist or not?

检测文件存在的四种方法。test if a File exist or not?

1.
WIN32_FIND_DATA m_data;
HANDLE hFile;

hFile=FindFirstFile(filename,&m_data)

if(hFile==INVALID_HANDLE_VALUE) //file not found

Make sure you close the handle if the file is found.

FindClose(hFile);

2.
You can use SHGetFileInfo()
The prototype of the function is as follows:

DWORD_PTR SHGetFileInfo(
LPCTSTR pszPath,
DWORD dwFileAttributes,
SHFILEINFO *psfi,
UINT cbFileInfo,
UINT uFlags
);

3.
PathFileExists

4. 加一个标准c库函数

Example

/* ACCESS.C: This example uses _access to check the
* file named "ACCESS.C" to see if it exists and if
* writing is allowed.
*/

#include  
#include  
#include  

void main( void )
{
  /* Check for existence */
  if( (_access( "ACCESS.C", 0 )) != -1 )
  {
     printf( "File ACCESS.C exists\n" );
     /* Check for write permission */
     if( (_access( "ACCESS.C", 2 )) != -1 )
        printf( "File ACCESS.C has write permission\n" );
  }
}