1.实现一个采用用户自定义协议的文件传输服务器FileServer和客户FileClient。

2.　　编写一服务器程序和客户程序，要求客户每输入一行数据，服务器接收后加上echo:回送给客户程序，要求服务器程序采用多线程方式和线程池为每个客户分配一个线程。-1. The realization of a use of user-defined file transfer protocol server FileServer and customer FileClient. 2. Write a server program and the client, required for every input line of data, the server after receiving add echo: back to give clients require the server program uses multiple threads and thread pools for each customer is assigned a thread.