本程序可以进行主层分分析，将因素在轴上进行投影，选择几个贡献率比较大因子-This procedure can be the main floor sub-analysis, factor in the axis for projection, choose the contribution rate of a few relatively large factor
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001326s ]
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:0.080648s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001074s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001091s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000983s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003132s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000891s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003769s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015136s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001126s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 4686 [ RunTime:0.015845s ]
