PR值全称为PageRank.PageRank(网页级别)是Google用于评测一个网页重要性的一种方法.在揉合了诸如Title标识和Keywords标识等所有其它因素之后.-PR value called the PageRank.PageRank (PageRank) Google is a method for the uation of the importance of a page in the blend after all other factors such as ident