能够判断输入的两个逻辑表达式是否等价（&代表and，|代表or，字母代表布尔变量-Able to judge whether the input of the two logical expressions equivalent to (& on behalf of and, | on behalf of or, the letter on behalf of Boolean variables
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001445s ]
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:0.093743s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001266s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001910s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001243s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003580s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001075s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003225s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015635s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001452s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 197442 [ RunTime:0.001236s ]
