使用操作系统提供的拷贝命令不能拷贝隐含或系统属性的文件，因为在拷贝过程中系统会提示“File not found”。下面的小程序可以解决这个问题。
-Provided by the use of the operating system copy command can not copy hidden or system file attributes, as in the copy process will be prompted to " File not found" . The following small program can solve the problem.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001230s ]
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:0.088523s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001197s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001993s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001213s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003820s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001027s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003373s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015772s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001483s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 263043 [ RunTime:0.001415s ]
