这是我用所学的知识写得阈值分割程序,希望对大家有一定的启发-This is my knowledge with written procedures for threshold segmentation, in the hope that everyone has a certain degree of inspiration
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001402s ]
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:0.092605s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001268s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001886s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001229s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003806s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001055s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003208s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.017501s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001489s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 109236 [ RunTime:0.001655s ]