// FileOperationDemo.cpp : Defines the entry point for the console application.
//
int main()
{
BOOL ret;
LPCWSTR filePath1 = _T("C:\\Users\\Administrator\\Desktop\\file_demo_test1.txt");
LPCWSTR filePath2 = _T("C:\\Users\\Administrator\\Desktop\\file_demo_test2.txt");
LPCWSTR dirPath1 = _T("C:\\Users\\Administrator\\Desktop\\dir_demo_test1");
LPCWSTR dirPath2 = _T("C:\\Users\\Administrator\\Desktop\\dir_demo_test2");
/*
创建文件
HANDLE CreateFile(
LPCTSTR lpFileName, //指向文件名的指针
DWORD dwDesiredAccess, //访问模式(写/读), 如果为 GENERIC_READ 表示允许对设备进行读访问;如果为 GENERIC_WRITE 表示允许对设备进行写访问(可组合使用);如果为零,表示只允许获取与一个设备有关的信息
DWORD dwShareMode, //共享模式, 0表示不共享; FILE_SHARE_READ 和/或 FILE_SHARE_WRITE 表示允许对文件进行共享访问
LPSECURITY_ATTRIBUTES lpSecurityAttributes, //指向一个SECURITY_ATTRIBUTES安全属性结构的指针,定义了文件的安全特性(如果操作系统支持的话),默认为0
DWORD dwCreationDisposition, //如何创建
DWORD dwFlagsAndAttributes, //文件属性
HANDLE hTemplateFile //用于复制文件句柄, 如果不为零,则指定一个文件句柄。新文件将从这个文件中复制扩展属性
);
dwDesiredAccess Long,下述常数之一:
FILE_READ_DATA |\
FILE_READ_ATTRIBUTES |\
FILE_READ_EA |\
SYNCHRONIZE)
FILE_WRITE_DATA |\
FILE_WRITE_ATTRIBUTES |\
FILE_WRITE_EA |\
FILE_APPEND_DATA |\
SYNCHRONIZE)
FILE_READ_ATTRIBUTES |\
FILE_EXECUTE |\
SYNCHRONIZE)
dwCreationDisposition Long,下述常数之一:
CREATE_NEW 创建文件;如文件存在则会出错
CREATE_ALWAYS 创建文件,会改写前一个文件
OPEN_EXISTING 文件必须已经存在。由设备提出要求
OPEN_ALWAYS 如文件不存在则创建它
TRUNCATE_EXISTING 将现有文件缩短为零长度
dwShareMode Long,下述常数之一:
dwFlagsAndAttributes Long, 一个或多个下述常数
FILE_ATTRIBUTE_ARCHIVE 标记归档属性
FILE_ATTRIBUTE_COMPRESSED 将文件标记为已压缩,或者标记为文件在目录中的默认压缩方式
FILE_ATTRIBUTE_NORMAL 默认属性
FILE_ATTRIBUTE_HIDDEN 隐藏文件或目录
FILE_ATTRIBUTE_READONLY 文件为只读
FILE_ATTRIBUTE_SYSTEM 文件为系统文件
FILE_FLAG_WRITE_THROUGH 操作系统不得推迟对文件的写操作
FILE_FLAG_OVERLAPPED 允许对文件进行重叠操作
FILE_FLAG_NO_BUFFERING 禁止对文件进行缓冲处理。文件只能写入磁盘卷的扇区块
FILE_FLAG_RANDOM_ACCESS 针对随机访问对文件缓冲进行优化
FILE_FLAG_SEQUENTIAL_SCAN 针对连续访问对文件缓冲进行优化
FILE_FLAG_DELETE_ON_CLOSE 关闭了上一次打开的句柄后,将文件删除。特别适合临时文件
*/
DWORD dwDesiredAccess = GENERIC_READ | GENERIC_WRITE;
DWORD dwShareMode = 0;
LPSECURITY_ATTRIBUTES lpSecurityAttributes = 0;
DWORD dwCreationDisposition = CREATE_NEW;
DWORD dwFlagsAndAttributes = FILE_ATTRIBUTE_NORMAL;
HANDLE hTemplateFile = 0;
HANDLE handle = CreateFile(filePath1, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile);
printf("CreateFile -> HANDLE=0x%x\n", (unsigned int)handle);
if (handle != INVALID_HANDLE_VALUE) {
FILETIME fCreationTime, fLastAccessTime, fLastWriteTime;
// GetFileTime函数用来获得一个文件或目录的创建的时间、最后访问的时间以及最后修改的时间
ret = GetFileTime(handle, &fCreationTime, &fLastAccessTime, &fLastWriteTime);
if (ret == 0) {
printf("GetFileTime fail(%d)\n", GetLastError());
}
else {
printf("GetFileTime -> %d\n", ret);
}
/*
根据一个FILETIME结构的内容,装载一个SYSTEMTIME结构。
WINBASEAPI _Success_(return != FALSE) BOOL WINAPI FileTimeToSystemTime(
_In_ CONST FILETIME * lpFileTime,
_Out_ LPSYSTEMTIME lpSystemTime
);
*/
SYSTEMTIME sysCreationTime, sysLastAccessTime, sysLastWriteTime;
ret = FileTimeToSystemTime(&fCreationTime, &sysCreationTime);
if (ret == 0) {
printf("FileTimeToSystemTime creationTime fail(%d)\n", GetLastError());
}
else {
printf("FileTimeToSystemTime creationTime -> %d\n", ret);
printf("%4d年%2d月%2d日,%2d:%2d:%2d\n", sysCreationTime.wYear, sysCreationTime.wMonth, sysCreationTime.wDay, sysCreationTime.wHour, sysCreationTime.wMinute, sysCreationTime.wSecond);
}
ret = FileTimeToSystemTime(&fLastAccessTime, &sysLastAccessTime);
if (ret == 0) {
printf("FileTimeToSystemTime lastAccessTime fail(%d)\n", GetLastError());
}
else {
printf("FileTimeToSystemTime lastAccessTime -> %d\n", ret);
printf("%4d年%2d月%2d日,%2d:%2d:%2d\n", sysLastAccessTime.wYear, sysLastAccessTime.wMonth, sysLastAccessTime.wDay, sysLastAccessTime.wHour, sysLastAccessTime.wMinute, sysLastAccessTime.wSecond);
}
ret = FileTimeToSystemTime(&fLastWriteTime, &sysLastWriteTime);
if (ret == 0) {
printf("FileTimeToSystemTime lastWriteTime fail(%d)\n", GetLastError());
}
else {
printf("FileTimeToSystemTime lastWriteTime -> %d\n", ret);
printf("%4d年%2d月%2d日,%2d:%2d:%2d\n", sysLastWriteTime.wYear, sysLastWriteTime.wMonth, sysLastWriteTime.wDay, sysLastWriteTime.wHour, sysLastWriteTime.wMinute, sysLastWriteTime.wSecond);
}
//用完要记得关闭,否则其他操作会失败,GetLastError()=32 => 进程无法访问文件,因为另一个程序正在使用此文件。
CloseHandle(handle);
}
/*
复制文件
BOOL WINAPI CopyFile(
_In_ LPCTSTR lpExistingFileName,
_In_ LPCTSTR lpNewFileName,
_In_ BOOL bFailIfExists
);
return 失败返回0,成功返回非0。
*/
ret = CopyFile(filePath1, filePath2, true);
if (ret == 0) {
printf("CopyFile fail(%d)\n", GetLastError());
}
else {
printf("CopyFile -> %d\n", ret);
}
/*
删除文件
BOOL DeleteFile(
LPCSTRlpFileName//要删除的文件名的指针
);
return 失败返回0,成功返回非0。如果程序尝试删除一个不存在的文件。GetLastError返回ERROR_FILE_NOT_FOUND。如果文件是只读 的,则GetLastError返回ERROR_ACCESS_DENIED
*/
ret = DeleteFile(filePath1);
if (ret == 0) {
printf("DeleteFile fail(%d)\n", GetLastError());
}
else {
printf("DeleteFile -> %d\n", ret);
}
/*
移动一个存在的文件或者目录(包括子目录)
WINBASEAPI BOOL WINAPI MoveFileW(
_In_ LPCWSTR lpExistingFileName,
_In_ LPCWSTR lpNewFileName
);
return 失败返回0,成功返回非0。
*/
ret = MoveFile(filePath2, filePath1);
if (ret == 0) {
printf("MoveFile fail(%d)\n", GetLastError());
}
else {
printf("MoveFile -> %d\n", ret);
}
/*
WINBASEAPI DWORD WINAPI GetFileAttributesW(
_In_ LPCWSTR lpFileName
);
*/
DWORD attr = GetFileAttributes(filePath1);
if (attr == INVALID_FILE_ATTRIBUTES) {
printf("GetFileAttributes fail(%d)", GetLastError());
}
else {
printf("GetFileAttributes -> 0x%x\n", attr);
}
DeleteFile(filePath1);
/*
创建文件夹(注意: 目录没有复制操作)
WINBASEAPI BOOL WINAPI CreateDirectoryW(
_In_ LPCWSTR lpPathName,
_In_opt_ LPSECURITY_ATTRIBUTES lpSecurityAttributes
);
return 失败返回0,成功返回非0。
*/
ret = CreateDirectory(dirPath1, 0);
if (ret == 0) {
printf("CreateDirectory fail(%d)\n", GetLastError());
}
else {
printf("CreateDirectory -> %d\n", ret);
}
/*
删除目录(注意:目录必须为空,否则会报145错误)
WINBASEAPI BOOL WINAPI RemoveDirectoryW(
_In_ LPCWSTR lpPathName
);
*/
ret = RemoveDirectory(dirPath1);
if (ret == 0) {
printf("RemoveDirectory fail(%d)\n", GetLastError());
}
else {
printf("RemoveDirectory -> %d\n", ret);
}
system("pause");
return 0;
}