最后，本文还对提取规则的优化问题进行了研究，对几种信息定位方式进行了比较，目的是此基础上编写更为简单、健壮和通用的提取规则。

At last, this paper studied the optimization of extraction rules and compared several information location methods. The aim is to generate simple, robust and general extraction rules.

youdao

最后，本文还对提取规则的优化问题进行了研究，对几种信息定位方式进行了比较，目的是此基础上编写更为简单、健壮和通用的提取规则。

At last, this paper studied the optimization of extraction rules and compared several information location methods. The aim is to generate simple, robust and general extraction rules.

youdao