本例是采用UDP通信，包括服务器与客户端，包括数据重传机制和异常处理机制-In this case is the use of UDP communications, including server and client, including data retransmission mechanism and exception handling mechanism
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:0.093493s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001252s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001966s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001328s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003685s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001075s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003207s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014589s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001302s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 152017 [ RunTime:0.001256s ]
