这是一篇OFDM自适应调制与编码的好文章，写方案或者具有设计可以参考。-This is an OFDM adaptive modulation and coding a good article, written with the design of programs or can refer to.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001594s ]
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:0.093591s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001281s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001915s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001234s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003611s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001054s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003199s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015032s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001315s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 262726 [ RunTime:0.001313s ]
