用perl写得一个完整的网络爬虫，支持内容过滤分类。支持很高的用户定义，搜索的结果可以存储到mysql或者zerba数据库，因为有完全的源码，对于学习和实用都很有价值。-a search engine system which combine with mysql or zerba database, suport content fliter.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001182s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.090093s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001418s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001943s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001363s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003637s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001218s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.008132s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015214s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001659s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 317536 [ RunTime:0.001333s ]
