遍历文件和文件夹 获取文件名后缀

//遍历文件夹

int FindFile(char* lpPath)
{
	char szFind[1000] = {0};
	WIN32_FIND_DATA FindFileData;
	strcpy(szFind,lpPath);
	strcat(szFind,"\\*.*");
	HANDLE hFind = ::FindFirstFile(szFind,&FindFileData);
	if (INVALID_HANDLE_VALUE==hFind)
	{
		return -8;//没有文件
	}
	while(1)
	{
		if (FindFileData.dwFileAttributes&FILE_ATTRIBUTE_DIRECTORY)
		{
			if (FindFileData.cFileName[0]!='.')
			{
				char szfile[500] = {0};
				strcpy(szfile,lpPath);
				strcat(szfile,"\\");
				strcat(szfile,FindFileData.cFileName);
				FindFile(szfile);
			}
		}
		else
		{
			//文件名+路径
			char tmpupload[1000] = {0};
			strcpy(tmpupload,lpPath);
			strcat(tmpupload,"\\");
			strcat(tmpupload,FindFileData.cFileName);
			
			//下载
			
		}
		if (!FindNextFile(hFind,&FindFileData))
		{
			break;
		}
	}
	FindClose(hFind);//用完记得关闭
	return 0;

}

int GetFileNameExtension(char*filename,char*Extension)//获取文件名后缀
{
	CString tmp;
	tmp = filename;
	tmp.MakeLower();//转成小写
	char fileTmp[1000] = {0};
	if (tmp.GetLength()>1000)
	{
		return -27;
	}
	strcpy(fileTmp,tmp.GetBuffer());
	char*tmpname = strrchr(fileTmp,'.');
	if (tmpname==NULL)
	{
		return -1;//执行失败
	}
	if (strlen(tmpname)>10)
	{
		return -27;
	}
	strcpy(Extension,tmpname+1);
	return 0;

}