采用自制线城池同时ping多台主机，
可以让工作人员能够及时地看到服务器网络是否断开-Self-made city line ping multiple hosts at the same time, allowing staff to network in time to see whether the server disconnect
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.008082s ]
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:0.189455s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002582s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001970s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001446s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005652s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001339s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.007069s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.025905s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002476s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 209489 [ RunTime:0.017637s ]
