动态规划的相关资料，dp主要是寻找递归关系，这里面有很多类型的dp资料便于学习-Dynamic programming related information, dp is mainly to find a recursive relationship, and there are many types of information to facilitate learning of dp
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001794s ]
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:0.106190s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000935s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000990s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.002977s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000913s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003796s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015760s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001507s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 149753 [ RunTime:0.012513s ]
