工具包，报告时间类型转化，字符串解析，数字的加减乘除等处理-Tool kit, the report time type conversion, string parsing, numbers, addition and subtraction multiplication and division, to deal with
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002115s ]
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:0.087818s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002448s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002097s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002165s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003629s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001965s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003191s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016255s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002858s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 164101 [ RunTime:0.001178s ]
