实现两个聚类中心之间的最小距离，如小于此数，两个聚类进行合并的功能。-This is a program of achiving the least distance of two clustering middle as the function of conbining two clustering less than some number.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.011777s ]
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:0.110491s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.013492s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001436s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005628s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.004826s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.007088s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 122758 [ RunTime:0.022369s ]
