一个简单功能的文件复制工具，通过API函数、THandleStream类和TFileStream三种方法复制文件!-a tool have simple function about copy files,
there are three methods: APIfunction, THandleStream class and TFileStream.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001072s ]
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:0.110370s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.015241s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001305s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000970s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004004s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000810s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003687s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014844s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001250s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 293844 [ RunTime:0.017227s ]
