对一个文件夹下面的doc和txt文件（文件夹下不包含文件夹）中的内容建立索引并实现了搜索功能。（代码有缺陷，见谅）-On a folder below the doc and txt files (folder does not contain a folder) to index the content and the achievement of the search function. (Code are flawed, will be forgiven)
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001524s ]
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:0.091273s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001518s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001920s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001253s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003561s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001099s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003185s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014855s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001311s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 211113 [ RunTime:0.001553s ]
