这是关于常用算法的一个pdf文件，通过这个文件可以对一些算法进行一定的了解-This is a commonly used algorithm on a pdf document, the adoption of the document can be of some algorithm some knowledge about the
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001942s ]
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:0.092304s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002375s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002772s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.006509s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002574s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.006184s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.026439s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.003110s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 161125 [ RunTime:0.001425s ]
