数据结构里面算术表达式的计算.主要是一元多项式的计算.仅供参考.-data structure inside arithmetic expression calculation. One yuan is polynomial calculations. For reference purposes only.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002397s ]
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:0.139098s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002932s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.003222s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002743s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.006221s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002499s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.005828s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.025248s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.003215s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 312148 [ RunTime:0.001517s ]
