Question

有人可以用外行的术语解释网址的语法。

Answer 1

protocol：//subdomain.domain.topLevelDomain：port / path / path.extension？query＆amp; morequery = value＃片段主要用于网络。

或者查看Simple.wikipedia article以获得一个好的外行解释。

Answer 2

[protocol]://[host/domain name][:port]/[path to resource]

protocol - http, https, ftp, etc
host/domain name - www.example.com, localhost, 192.34.12.1, etc
port - 80 by default for http, can be something else too
path to resource - /images/test.gif, /index.php

Answer 3

看一下描述的RFC 1738 - Uniform Resource Locators (URL)：

统一资源定位器（URL），形式化的语法和语义有关位置和访问的信息通过互联网获取资源。

以下是http URL的类似BNF描述的摘录：

url            = httpurl | ftpurl | newsurl |
                 nntpurl | telneturl | gopherurl |
                 waisurl | mailtourl | fileurl |
                 prosperourl | otherurl

httpurl        = "http://" hostport [ "/" hpath [ "?" search ]]
hpath          = hsegment *[ "/" hsegment ]
hsegment       = *[ uchar | ";" | ":" | "@" | "&" | "=" ]
search         = *[ uchar | ";" | ":" | "@" | "&" | "=" ]

URL的语法是什么

3 个答案: