一个关于人脸识别的PCA方法，不知有没有，先传了。程序非常简单，每一行都有非常详尽的注释。所以可供刚入门者学习。-On the PCA face recognition method, I wonder if there are not, first passed. Procedure is very simple, each line has very detailed notes. So for beginners just learning.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001392s ]
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:0.093278s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001218s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001968s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001230s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003625s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001056s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003205s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015102s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001398s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 192874 [ RunTime:0.001283s ]
