一般站点都会有友情连接，但是你确并不知道别人在你的站点上都点了那些友情连接，这个东西可以实现!或者是适用于那些导航类站点，方便你统计通过本站点出的连接-General site will have links, but you really do not know other people on your site have a point of the friendship connection, this thing can be achieved! Or is applicable to those types of site navigation, convenient you this site statistics through connection