简单的一个多线程下载demo,用来包括对进度条的刷新，数据库的操作-A simple multi-threaded download demo, including the progress bar to refresh, database operations, etc.

TCP 和UDP端口扫描 有进度条显示 C++编写 MFC框架实现 界面良好-TCP and UDP port scan a progress bar shows Written in C++ MFC framework to achieve Good interface