该系统是linux下的socket编程，实现随机生成两个数，返回相加结果和相减的结果。-The system is socket programming under linux, realize the two randomly generated number, to return the sum of the results and the results of subtraction.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001342s ]
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:0.077227s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001735s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001167s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000954s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003042s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000881s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003885s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016611s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001220s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 114105 [ RunTime:0.015089s ]
