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:0.000793s ]
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:0.101227s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.012924s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001258s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.005623s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.006547s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001339s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.010981s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016368s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001111s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 172708 [ RunTime:0.013223s ]
