实现最小编辑距离算法，并给出完整的编辑过程，完整版源码，已调试通过-To achieve the minimum edit distance algorithm, and gives the complete editing process, full version of source code, has been debugging through the
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.007275s ]
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:0.087571s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002178s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002010s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002358s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003796s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002294s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003505s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016641s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002733s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 170101 [ RunTime:0.001411s ]
