一个简单大家容易看的懂的频率计设计程序，可以实现自动换挡功能。-A simple and easy to see to understand all of the frequency counter design program that can automatically shift feature.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002323s ]
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:0.089106s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002348s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001932s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001967s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003833s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002163s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003497s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015217s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002370s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 321471 [ RunTime:0.001227s ]
