一个关于Java多线程的技术文档，简单介绍了线程的概念，线程的创建，线程的调度，线程的优先级等基本概念，并配有相应的代码讲解。-Java multi-threaded on a technical documentation, briefly introduced the concept of threads, thread creation, thread scheduling, thread priority, the basic concepts and explain with a corresponding code.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001063s ]
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:0.094256s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000989s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001178s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000980s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003179s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000909s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004194s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014006s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001064s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 45942 [ RunTime:0.011228s ]
