VC如何判断一个文件是否存在？

1、使用_access函数，函数原型为 int _access( const char *path, int mode );

2、使用CreateFile函数，函数原型为：

                  HANDLE CreateFile( LPCTSTR lpFileName, // pointer to name of the file

                                                  DWORD dwDesiredAccess, // access (read-write) mode

                                                  DWORD dwShareMode, // share mode

                                                  LPSECURITY_ATTRIBUTES lpSecurityAttributes, // pointer to security attributes

                                                  DWORD dwCreationDisposition, // how to create

                                                  DWORD dwFlagsAndAttributes, // file attributes

                                                  HANDLE hTemplateFile // handle to file with attributes to // copy

                                                  );

3、使用FindFirstFile函数，函数原型为：

                 HANDLE FindFirstFile( LPCTSTR lpFileName, // pointer to name of file to search for

                                                   LPWIN32_FIND_DATA lpFindFileData // pointer to returned information

                                                   );

4、使用GetFileAttributes函数，函数原型如下：

                DWORD GetFileAttributes( LPCTSTR lpFileName // pointer to the name of a file or directory ); 5. 使用Shell Lightweight Utility APIs函数 PathFileExists（）专门判断文件和目录时否存在的函数文件名可读性比较强还可以判断目录是否存在 Header: Declared in Shlwapi.h Import Library: Shlwapi.lib 以上的各种方法供参考，函数具体用法需参见MSDN。