实现一个通过TCP套接字来建立连接的通讯,服务器和客户端需要实现以下5个功能：

1，客户端与服务器建立连接，需要用户名和加密密码。

2，客户端发送想分享的文件名给服务器。

3，客户端发送一个想下载的文件查询。

4，客户端显示收到的回复信息，并显示。

5，登出。

-Your P2P client will need to interface with the P2P server which you are being

provided with to carry out the following tasks:

1) Authenticate with the server (provide a username and encrypted password)

2) Send a list of files to the server that you wish to share with other users

3) Submit a search query to the server for a file you wish to download

4) Receive the search results, parse them, and output them to the user

5) Log out

The protoco