本设计实现了ftp的设计，使用了socket网络编程，ftp基于cs模式，包含客户端和服务端，可以实现上传、下载、删除、添加等各种功能，支持断点续传、多用户登陆、错误日志等功能。运行环境是linux，压缩包内含有源代码、使用说明、实验报告等，是学习linux和网络编程的上等材料。-This design enables the design of ftp, using the socket network programming, ftp cs-based model, including client and server, you can achieve upload, download, delete, add other features to support HTTP, multi-user login , error logs and other functions. Operating environment is linux, archive containing source code, instructions, test reports, learn linux and network programming is an excellent material.