接着上传带出错处理机制的linux环境下的网络编程-TCPserver端的流程程序，适合研究网络编程的初学者。-Then upload error handling mechanism with the linux network programming environment of the process end-TCPserver procedures, research network programming for beginners.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001600s ]
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:0.084128s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001078s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001081s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000985s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003073s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000878s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003564s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014554s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001236s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 239312 [ RunTime:0.030793s ]
