UDP服务器和客户端通信的简单例子，但麻雀虽小，五脏俱全，适合于初学者。-UDP server and client communication simple examples, but Sparrow small, perfectly formed, and suitable for beginners.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002470s ]
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:0.111632s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002110s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002334s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002521s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004562s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.005140s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.005565s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.019103s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.003637s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 126184 [ RunTime:0.001605s ]
