互联网的一大特点是实现信息共享，文件传输是信息共享的十分重要的内容之一。随之出现了许多FTP服务器来共享一些信息资源，编写一个操作简单，方便的FTP客户端来下载这些资源受到了人们的极大欢迎。

FTP客户端软件是在了解FTP工作原理后，利用C#语言来设计和开发的。FTP客户端分为连接模块、文件管理模块、文件传输模块和辅助管理模块。连接模块实现主机与服务器的连接的功能；文件管理模块实现新建文件、删除文件等功能；文件传输模块实现主机与服务器连接成功后上传和下载文件功能。辅助管理模块实现一些相关功能如：读写配置INI文件。该FTP客户端软件达到了使用方便的目标，希望开发软件的经验能为使用.NET设计开发Windows应用程序FTP客户端软件的初学者提供一些帮助。

 

关键词：.NET；C#；文件传输协议；客户端

 

The predominant characteristic of network is information resources sharing. Document transmission is an important component element. Because of this, many File Transfer Protocol (FTP) servers appeared, and won its way into favor.

C# programming language is used to develop the FTP client software after comprehending the FTP working principle. And this FTP client software is made up of linking module、file management module、file transmission module and assisted management module. Linking module performs the functions of linking a host and a server; functions of operating on files are implemented in file management module; transmitting files is easy through applying file transmission module; assisted management module mainly performs the functions of reading and writing the INI files. This FTP client software is usable. And I hope the experience from this software development can do some help to the learners who'll devote their efforts to FTP client software development.

 

Key words: .NET; C#; FTP, Client

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

论文总页数：21页