简单双机聊天及文件传输客户端程序，配合服务器程序，通过输入ip地址，可以进行网络聊天，输入传输文件的地址，可以进行文件传输-Simple dual-chat and file transfer client application, with the server program, by entering the ip address, the network can chat, enter the address of file transfer, file transfer can be