操作系统试验！通过这个试验，你可以更加详细的了解的一些操作系统方面的知识！-Test operating system! Through this test, you can a more detailed understanding of some of the operating system of knowledge!
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001862s ]
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:0.153628s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001837s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.003043s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001972s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.006031s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001583s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003839s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015827s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001531s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 175043 [ RunTime:0.001474s ]
