神经网络开发包用C++语言来编写的一段程序，不足之处请多指教。-Neural network development kit with C++ language section of the preparation of procedures, the inadequacy of advice please.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.015961s ]
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:1.112311s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.047519s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.012136s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.014839s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.006828s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.004323s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.016286s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.049981s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.015019s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 66893 [ RunTime:0.028460s ]
