CWinThread *pThread;
pThread=AfxBeginThread(CMServer::ConnectToFTPServer, m_pMServer, THREAD_PRIORITY_LOWEST,0, CREATE_SUSPENDED, NULL))
然后在后面delete pThread, 只是关掉线程的句柄,线程本身并没有退出吧,  如果这个线程没被用,操作系统会回收吗? 
delete pThread会调用下面的
CWinThread::~CWinThread()
{
// free thread object
if (m_hThread != NULL)
CloseHandle(m_hThread); // cleanup module state
AFX_MODULE_THREAD_STATE* pState = AfxGetModuleThreadState();
if (pState->m_pCurrentWinThread == this)
pState->m_pCurrentWinThread = NULL;