本程序采用牛顿拉夫逊进行电力网络的潮流分布计算，是电力系统教学的工具之一。-This procedure using the Newton Raphson power networks, the trend of distributed computing, power systems are one of the tools of teaching.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001199s ]
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:0.086949s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001319s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001998s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001223s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003771s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001113s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003198s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014791s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001249s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 152643 [ RunTime:0.001168s ]
