有关于linux下的线程实验，包含有线程的创建、挂起，通过此例可熟悉线程操作-Under the thread on the linux experiment contains thread creation, hang by a thread in this case may be familiar with the operation! !
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001961s ]
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:0.096929s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001267s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002210s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001934s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005301s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001219s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003860s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014781s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001465s ]
UPDATE `jrk_articles` SET `hits` = 3 WHERE `id` = 305753 [ RunTime:0.018243s ]
