简单的web http服务器程序，实现了上传和下载的功能，当然用了多线程，不过功能很简单，我也是从书上找的，不过调试了我半天时间-simple http web server, achieving upload and download functions, of course with a multithreaded, but functional is very simple, I also find books, but I debug a long time

能实现多线程断点续传，在网络中断后将已经上传的部分缓存在服务器，在连上网络后接着上传(To achieve multi-threaded HTTP cache, in part after the network interrupt has been uploaded on the server, to connect to the network and then upload)