采用多线程技术，利用socket通信。实现六个线程的跑步比赛，通过内核对象event，实现线程的同步。-Multi-threading technology, the use of socket communication. To achieve six threads running race through the kernel object event, to achieve thread synchronization.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001274s ]
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:0.093146s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001246s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002100s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001373s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003614s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001073s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003344s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015407s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001950s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 163349 [ RunTime:0.001317s ]
