网络授时服务是在网络上设置一些时间服务器，用户通过Internet访问这些时间服务器就可同步本地计算机时钟的服务。-network time service on the network is set up some time server, Internet users visit those time servers can be synchronized to the local computer clock service.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001069s ]
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:0.065803s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001117s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001351s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001049s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003322s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000882s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003981s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016873s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001356s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 289571 [ RunTime:0.013023s ]
