本书中，我们会将HTTP中一些互相关联且常被误解的规则梳理清楚，并编写了一系列
基于各种主题的章节介绍HTTP各方面的特性。纵观全书，我们对HTTP“为什么”这
样做进行了详细的解释，而不仅仅停留在它是“怎么做”的。而且，为了节省大家寻找
参考文献的时间，我们还介绍了很多HTTP应用程序正常工作所必需且重要的非HTTP
技术。在条理清晰的附录中，可以找到按照字母排序的首部参考（这些首部构成了最常
见的HTTP文本的基础）。我们希望这种概念性的设计有助于读者更好地使用HTTP。(In this book, we will tease out some of the interrelated and often misunderstood rules in HTTP and write a series of them
The various aspects of HTTP are introduced based on various topics. Throughout the book, we have to HTTP "why" this
The sample was explained in detail, not just how it was done. And, in order to save everyone looking for
Reference time, we also introduced a lot of HTTP applications normal work necessary and important non HTTP
Technology. In a clear appendix, you can find alphabetical reference to the head (these headers make up the most common
The basis of the HTTP text seen. We hope this conceptual design will help readers better use HTTP.)