此代码研究的是力学上的断裂问题，从理论上研究了断裂过程中介质的受力形态。-This code is the study of fracture mechanics problems, from a theoretical study of the fracture process in the form of the medium force.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002119s ]
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:0.088770s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002341s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001980s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002297s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003752s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002079s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003475s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014917s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002587s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 229922 [ RunTime:0.001242s ]
