套接字一旦建立，通过套接字选项和IO控制命令对各种属性进行操作，便可以对套接字的行为产生影响，本章主要内容就是这些，-Socket, once established, through the socket options and IO control commands to operate on a variety of attributes, they can have an impact on the conduct of the socket, the main contents of this chapter is that these,