利用Socket套接字创建基于对话框类的FTP工具。主要功能是在网络上的FTP服务器上，实现单线程下载，能够实现文件上传功能。-use Socket created based on the type dialog FTP tools. Its main function is on the network FTP server, the thread to achieve the download, upload documents to achieve functional.

一个比较著名的开源FTP服务器.其主页是：http://www.wu-ftpd.org/-a famous revenue FTP server. Its home page is : http : / / www.wu-ftpd.org/

ftp服务器，具备其应有的功能是个很好的学习例子，用到api，c++，mfc。-ftp server, with its functions is a good learning example, use api, c++, mfc.

FTP服务器 能够实现监听 打开目录-In active mode FTP the client connects from a random unprivileged port (N > 1024) to the FTP server’s command port, port 21. Then, the client starts listening to port N+1 and sends the FTP command PORT N+1 to the FTP server.