设计学概论 百度云:什么是RFC? 它的作用是什么？

祥情参见http://www.cnpaf.net/Class/wlxy/055181744095441934.htm
RFC is an acronym for Request for Comments and official documents from the Internet Engineering Task Force (IETF) with an unlimited distribution. RFC‘s are numbered in a series and are referred to by numbers.
RFC是Request for Comments首字母的缩写，它是IETF（互联网工程任务推进组织）的一个无限制分发文档。RFC被编号并且用编号来标识。

RFC‘s contain information for the Internet Community including users and system administrators as well as developers. Some RFC‘s describe standardized protocols such as FTP (File Transfer Protocol), SMTP (Simple Mail Transfer Protocol), POP3 (Post Office Protocol 3), IMAP4 (Internet Message Access Protocol 4), and DNS (Domain Name Service). In fact, it is not unusual for a protocol to be described in RFC‘s and sometimes, a protocol is updated by a RFC.
RFC包含供互联网社区用户、系统管理员及开发者使用的信息。一些RFC描述了标准化协议（如FTP、SMTP、POP3、IMAP4和DNS）。实际上，一个协议以RFC的形式被描述是非常正常的，一个协议是通过RFC来升级的。