《日知录》和《天下郡国利病书》是顾炎武的两部代表作品。《日知录》是顾炎武从青年时代就开始积累资料,付出了三十多年心血所编成的一部巨型读书笔记。《日知录》的体例,是一种札记性和考据性的笔记文。其内容涉及的领域非常广泛,几乎古今中外,无所不包。这部著作用“日知”二字命名,表明顾炎武对自己知识来源的正确看法。《天下郡国利病书》是他从二十七岁起,历时二十四年(1639--1662)读书数万卷,往来南北作实地调查,曲折行程达二、三万里而编定的一部 “The Japanese daily record” and “the world County Guo Li disease book” is Gu Yanwu's two representative works. “Japanese known record” is Gu Yanwu from the youth began to accumulate information, paid thirty years of hard work compiled a giant reading notes. “Daily Record” approach, is a note-based and test-based notes. Its content involves a wide range of areas, almost all over the world, all-encompassing. The role of “Japanese knowledge” is named after, indicating Gu Yanwu correct view of their own sources of knowledge. It is a book compiled by Twenty-Seven Years Old Twenty-four-year-old (1639--1662) from his twenties to his hometown and has conducted field surveys between North and South. A