根据套接口编程的流程图和 API 函数编写基于 IPv6 的客户端及服务器端程序，实现一个简单的两人聊天应用，即每个人在自己的机子上输入消息，能够使对方看见-IPv6-based client and server-side program according to the flowchart of socket programming and API to write to achieve a simple two chat application, that everyone in the