这是严蔚敏版的清华大学严蔚敏版数据结构讲义的PPT，还是挺有用的。-This is a sensitive version of the Tsinghua University, Yan Wei Yan Wei-min version of the data structure notes of the PPT, or Tingyou use.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001603s ]
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:0.103484s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001452s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001205s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001107s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003401s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000761s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003837s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.022679s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001569s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 203076 [ RunTime:0.015825s ]
