第二章 网络编程 1.学习笔记 2.课后习题 答案是按照自己理解和查阅资料来的,不保证正确性.如由错误欢迎指出,谢谢 1. 套接字:A network socket is an endpoint of a connection across a computer network,Sockets are often represented internally as simple integers, which identify which connection to use. 套接字是网络通信的