本程序实做MLP(Multi-layer perceptron)算法，使用者可以自行设定训练数据集与测试数据集，将训练数据集加载，在2、3维下可以显示其分布状态，并分别设定键节值、学习率、迭代次数来训练其类神经网络，最后可观看辨识率与RMSE（Root Mean squared error）来判别训练是否可以停止。
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001584s ]
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:0.098454s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001656s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002001s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001701s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005447s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001417s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004028s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.018253s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001566s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 369396 [ RunTime:0.009609s ]
