问你个vc的问题

[魔力派]

我想读取一个目录里的所有txt文件的名字，以及第一行的一个数字，并且进行排序显示，给一下指导？

[snowmail]

帮你顶一下，顺便学习！
对于VC操作文件还是不太熟悉的。

[goodboyws]

最好一次问一个问题

[真糨糊]

WIN32_FIND_DATA FileData;
HANDLE hSearch;
DWORD dwAttrs;
char szDirPath[] = "c:\\TEXTRO\\";
char szNewPath[MAX_PATH];
char szHome[MAX_PATH];

BOOL fFinished = FALSE;

// Create a new directory.

if (!CreateDirectory(szDirPath, NULL))
{
ErrorHandler("Couldn't create new directory.");
}

// Start searching for .TXT files in the current directory.

hSearch = FindFirstFile("*.txt", &FileData);
if (hSearch == INVALID_HANDLE_VALUE)
{
ErrorHandler("No .TXT files found.");
}

// Copy each .TXT file to the new directory
// and change it to read only, if not already.

while (!fFinished)
{
lstrcpy(szNewPath, szDirPath);
lstrcat(szNewPath, FileData.cFileName);
if (CopyFile(FileData.cFileName, szNewPath, FALSE))
{
dwAttrs = GetFileAttributes(FileData.cFileName);
if (!(dwAttrs & FILE_ATTRIBUTE_READONLY))
{
SetFileAttributes(szNewPath,
dwAttrs | FILE_ATTRIBUTE_READONLY);
}
}
else
{
ErrorHandler("Couldn't copy file.");
}

if (!FindNextFile(hSearch, &FileData))
{
if (GetLastError() == ERROR_NO_MORE_FILES)
{
MessageBox(hwnd, "No more .TXT files.",
"Search completed.", MB_OK);
fFinished = TRUE;
}
else
{
ErrorHandler("Couldn't find next file.");
}
}
}

// Close the search handle.

if (!FindClose(hSearch))
{
ErrorHandler("Couldn't close search handle.");
}

[真糨糊]

WIN32_FIND_DATA FileData;
HANDLE hSearch;

BOOL fFinished = FALSE;

// Start searching for .TXT files in the current directory.

hSearch = FindFirstFile("*.txt", &FileData);
if (hSearch == INVALID_HANDLE_VALUE)
{
ErrorHandler("No .TXT files found.");
}
while (!fFinished)
{
if (!FindNextFile(hSearch, &FileData))
{
if (GetLastError() == ERROR_NO_MORE_FILES)
{
MessageBox(hwnd, "No more .TXT files.",
"Search completed.", MB_OK);
fFinished = TRUE;
}
else
{
ErrorHandler("Couldn't find next file.");
}
}
}

// Close the search handle.

if (!FindClose(hSearch))
{
ErrorHandler("Couldn't close search handle.");
}
文件名包含在WIN32_FIND_DATA FileData中
typedef struct _WIN32_FIND_DATA {
DWORD dwFileAttributes;
FILETIME ftCreationTime;
FILETIME ftLastAccessTime;
FILETIME ftLastWriteTime;
DWORD nFileSizeHigh;
DWORD nFileSizeLow;
DWORD dwReserved0;
DWORD dwReserved1;
TCHAR cFileName[ MAX_PATH ];
TCHAR cAlternateFileName[ 14 ];
} WIN32_FIND_DATA, *PWIN32_FIND_DATA;

[魔力派]

这是取得名字吧，我还是新手。取得一行的数字呢？

[ggw]

CFileFin类可用于查找所有的文件名,用CFile类或其派生类CStdioFile操作文件读写.EASY.

[lzl1010]

read the first line:

.....
CString path("D:\\1.txt");
CString readline;
CStdioFile file;
if(!file.Open(path,CFile::modeRead,&except))
{
except.ReportError();
}
for(int i =1 ;file.ReadString(readline);i++)
{
if (i>0)
break;
}
//readline is content of the first line
ok?

[sinsou]

使用fget函数获得一行的数据，然后解析

[sujinzhao407]

MSDN里没有fget函数啊,fgetc只能从文件的当前位置每次读取一个字符
楼主,楼上的njg_jh(糨糊)和lzl1010(东方)已经回答了问题
lzl1010(东方)忘了定义一个变量:
CFileException* except=NULL;
^--^

[sinsou]

不好意思，是fgets函数，我写错了
其实读文件的方式有很多，看你自己怎么喜欢怎么用了
我本身就喜欢用标准C的函数读