局部变量的学习，帮助初学者理解局部变量。局部变量的学习，帮助初学者理解局部变量。-local variables of the study to help beginners understand the local variable. Local variables are learning to help beginners understand the local variable.
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:0.085187s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001180s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001915s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001188s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003622s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000976s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003180s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014807s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001368s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 271647 [ RunTime:0.001329s ]
