uboot使用的初级教材，英文编写，适合初学者的文件，和刚刚上传的文件一起使用-uboot use of primary materials, in English, the paper suitable for beginners, and just upload documents used together
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001285s ]
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:0.093632s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001250s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001895s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001232s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003933s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001090s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003194s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014918s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001392s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 127510 [ RunTime:0.001241s ]
