牛顿差商法求数值拟合。包文件中包含一个例子结果文件，包括输入和输出的结果。-poor numerical fitting. Packet document contains an example of the outcome document, including input and output results.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001311s ]
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:0.091148s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001291s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001948s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001268s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003601s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001070s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003809s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.017643s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001420s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 234390 [ RunTime:0.001381s ]
