实现M序列的产生，用于产生M序列，它用在信号的加密，作为训练序列等-Realization of M sequence generation, used to produce M sequence, which used in signal encryption, such as the training sequence
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001384s ]
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:0.087117s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001148s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002111s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001155s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003640s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000982s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003192s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014856s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001341s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 12478 [ RunTime:0.001271s ]
