当你进入 UNIX 的神秘世界后，立刻会发现越来越多的东西难以理解。对于大多数人来说，BSD socket 的概念就是其中一个。这是一个很短的教程来解释他们是什么、他们如何工作并给出一些简单的代码来解释如何使用他们。 -UNIX When you enter the mysterious world soon will find more and more difficult to understand things. For most people, BSD socket concept is one of them. This is a very short tutorial to explain what they are, how they work and give some simple code to explain how to use them.