这个是比较多的常用的系统操作的示例，有系统信息获取，文件访问等等的方法介绍-this was more commonly used operating system examples of a systematic access to information, documents, etc. visit the method introduced
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001239s ]
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:0.089094s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001299s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001903s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001231s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003582s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001040s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003198s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015017s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001437s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 117549 [ RunTime:0.001245s ]
