//线程函数  DWORD WINAPI ThreadProc(LPVOID lpParameter)  {      for (int i=0;i<20;i++)      {          printf("I'm in thread,count=%d\n",i);      }      return 0;  }  int _tmain(int argc, _TCHAR* argv[])  {      DWORD dwThreadId;      HANDLE hThread = ::CreateThread(NULL, 0, ThreadProc,NULL, 0, &dwThreadId);      if (hThread == NULL)      {          printf("createThread failed...");          return -1;      }      //等待线程结束      ::WaitForSingleObject(hThread, INFINITE);      printf("thread finished...");      ::CloseHandle(hThread);      return 0;  }