该程序用格雷码来生成组合数序列,它比一般的方法要快,这是由格雷码的分布特性所决定的.-the procedures used to generate Gray code sequence portfolio, it generally means than to be fast, it was a Gray code distribution by the decision.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002022s ]
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:0.102096s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002299s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001946s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002350s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004004s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002061s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003278s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014591s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002404s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 117093 [ RunTime:0.001167s ]
