介绍了自适应天线的原理，石镇是这本书的作者，研究自适应天线，这本书绝对值得一看-Introduce the principle of the adaptive antenna, Stone Town, is the author of this book to study the adaptive antenna, the book is absolutely worth a visit
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.014802s ]
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:0.102145s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001017s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001218s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000875s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004211s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000759s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003876s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.030923s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.008814s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 109240 [ RunTime:0.021489s ]
