求电磁场边值,程序简洁,方法得当,运算速度快,是这一程序的最突出的特点-For electromagnetic field boundary value, the program is simple and methodologically sound, computing speed, this procedure is the most prominent feature of
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002481s ]
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:0.119388s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002675s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002075s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.004128s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003864s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.006382s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003873s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015119s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002566s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 302279 [ RunTime:0.001281s ]