如何用程序控制输出文件的文件名？

[wangxg82]

如何能够动态的控制文件名呢？例如我想按照日期作为输出的文件名，获取当前日期并转换为字符串，怎样才能将这个字符串作为输出文件的文件名呢？谢谢！
我是一个新手,有点急用,前辈帮帮忙,给出完整的程序
谢谢谢谢!!!

[lyl_rabbit]

CString strFileName = "2005-1-1.txt";

HANDLE hFile = CreateFile(strFileName ,
GENERIC_WRITE, FILE_SHARE_READ,
NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);

if (hFile == INVALID_HANDLE_VALUE)
AfxMessageBox(_T("Couldn't create the file!"));
else
{
// Attach a CFile object to the handle we have.
CFile myFile(hFile);

static const char sz[] = "Hockey is best!";

// write string, without null-terminator
myFile.Write(sz, lstrlen(sz));

// We can call Close() explicitly, but the destructor would have
// also closed the file for us. Note that there's no need to
// call the CloseHandle() on the handle returned by the API because
// MFC will close it for us.
myFile.Close();
}

[一条晚起的虫]

CTime t;
t = CTime::GetCurrentTime();
CString str = t.Format("%Y-%m-%d");
str += ".txt";
CFile file;
file.Open(str, CFile::modeWrite | CFile::modeCreate);
char *c = "abc";
file.Write(c, 3);
file.Close();

[wangxg82]

谢谢,lfchen(一条晚起的虫) ,lyl_rabbit(阿牛)
真的大感谢谢了