无功功率分离谐波成分和基波成分，采用数学形态学滤波器作为低通滤波-Reactive power components of the separation of harmonic and fundamental components, the use of mathematical morphology filter as a low-pass filter
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.952403s ]
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:0.654739s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.009847s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.151662s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.076255s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.031913s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.047443s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.012800s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.024567s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.546372s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 5175 [ RunTime:0.481681s ]
