该程序包包含三个函数，一个用于建立BP神经网络，一个用于训练该网络，最后一个用于测试样本。-The package contains three functions, one for the establishment of BP neural networks, one for training the network, the last one for the test samples.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001202s ]
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:0.084113s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001237s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001893s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001311s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003611s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001162s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003269s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014514s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001497s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 313933 [ RunTime:0.001366s ]
