利用内存映射操作文件，读入内存后，逐行处理，希望有点用-Operation of the use of memory-mapped files, read into the memory after the processing line by line, I hope a little bit with
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002093s ]
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:0.088294s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002227s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002076s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002160s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004001s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002013s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003217s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015154s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002418s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 160881 [ RunTime:0.001125s ]
