用于实现单目标跟踪的仿真。采用单传感器单目标的方式，介绍了基本的数据关联方法。-Used to achieve single-target tracking simulation. Single-sensor single-objective way to introduce the basic method of data association.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001473s ]
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:0.099496s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000982s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001194s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000993s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003069s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000876s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003715s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015609s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001069s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 141477 [ RunTime:0.012134s ]
