BP算法拟合f(x1,x2)=sin((x1)/x1)*sin((x2)/x2)*函数,样本数为21*21对-BP fitting algorithm f (x1, x2) = sin ((x)/x)* sin ((x2)/x2)* function, sample size of 21* 21 pairs
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001110s ]
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:0.100902s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001101s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001852s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001305s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003571s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001049s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003161s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016327s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001291s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 192678 [ RunTime:0.001302s ]
