这是一个求非线性方程一个实根的牛顿法，函数返回标志值。若返回的标志值大于等于0则表示正常返回-This is a nonlinear equation for a real root of the Newton method, function return value signs. If the sign of the return value greater than or equal to 0 that the normal return
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.003407s ]
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:0.072181s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001055s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001285s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001210s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003226s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000933s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003764s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015122s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001147s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 165570 [ RunTime:0.024812s ]
