可以实现实对称矩阵的奇异值求解，也可以求高阶的，本人花了一周的时间完成的，效果还不错！-can achieve real symmetric matrix singular value of the solution can also seek high-end, I spent a week"s time, the results were pretty good!
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001201s ]
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:0.093325s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001135s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001216s ]
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:0.001034s ]
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SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015065s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001297s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 72368 [ RunTime:0.001489s ]
