Windows中的很多东西都是从Unix领域借鉴过来的，Socket也是一样。在Unix中，socket代表了一种文件描述符（在Unix中一切都是以文件为单位）-This is a program for Socket in Unix,you can known some basic knowledge about the application in this field.

简述了unix下的socket编程的一些原理和基础知识-Outlines the socket programming under unix some basic knowledge of principles and