"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...
Think of a robots.txt file as being like a "Code of Conduct" sign posted on the wall at a gym, a bar, or a community center: The sign itself has no power to enforce the listed rules, but "good" patrons will follow the rules, while "bad" ones are likely to break them and get...