适合初学者用的vc简单代码，是一个用于视频演习的代码，不过实用性不高只适合初学者-Suitable for beginners to use the vc simple code is a code for video exercises, but practicality is not high is only suitable for beginners
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002445s ]
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:0.124203s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002618s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002785s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002549s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005799s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002414s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.005253s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.023896s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002939s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 172708 [ RunTime:0.001105s ]
