实现一个FTP客户端的功能，有需要做课程设计之类的朋友可以下载了作为参考-Implement a FTP client function, there is a need to do curriculum design and the like can be downloaded as a reference for friends

关于FTP的一篇课程设计，里面有方法、步骤和一些相关代码，有兴趣的朋友可以看一看-An FTP program on the design, there are methods, steps and some related code, interested friends can see