"robots.txt"文件包含一条或更多的记录,这些记录通过空行分开(以CR,CR/NL, or NL作为结束符),每一条记录的格式如下所示: "<field>:<optionalspace><value><optionalspace>"。 在该文件中可以使用#进行注解,具体使用方法和UNIX中的惯例一样。该文件中的记录通常以一行或多行User-agent开始,后面加上若干...
2022年9月21日The Robots Exclusion Standard was developed in 1994 so that website owners can advise search engines how to crawl your website. It works in a similar way as the robots meta tag which I discussed in great length recently. The main difference being that the robots.txt file will stop search ...