利用这个源代码我们可以更深的了解关于netstat这个命令是如何工作的，这个源代码可以扫描指定网段内的主机的用户信息-we can understand much deepper about the mechanism of NETSTAT command , this source code can scan the information of PCs in certain ip range
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001180s ]
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:0.085470s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001176s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001862s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001169s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003576s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001005s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003156s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015625s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001268s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 315630 [ RunTime:0.001274s ]
