数组的建立擦除，存取到文件和读取文件
数组之间的加法乘法运算等-Erase the establishment of an array, access to documents and read the file between the adder array multiplication such as
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001618s ]
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:0.078720s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001024s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001146s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001157s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003211s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000919s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003841s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.019560s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001248s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 121601 [ RunTime:0.014659s ]
