正确性、健壮性、可靠性、效率、易用性、可读性（可理解性）、可扩展性、可复用性、兼容性、可移植性软件所应具备的知识！-Accuracy, robustness, reliability, efficiency, ease of use, readability (intelligibility), scalability, reusability, compatibility, portability of software should have the knowledge!
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001500s ]
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:0.105325s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001078s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001210s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000997s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003053s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000944s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003775s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015668s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001157s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 187469 [ RunTime:0.045167s ]
