比较清晰地讲述正则表达式的文章，非常适合初学者了解并掌握正则表达式的用法与技巧，推荐！-More clearly about regular expressions article, very suitable for beginners to understand and master the use of regular expressions and techniques, recommended!
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001223s ]
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:0.064602s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001137s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002752s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001076s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003393s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000960s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003639s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014882s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001240s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 174962 [ RunTime:0.018606s ]
