更新數據庫時，里面的finished信息是在while循環里面實時更新的mfinished，不是fileinfo的finished

http://my.oschina.net/u/2364370

http://my.oschina.net/u/2364374/blog/413003

http://10223703.blog.51cto.com/10213703/1650036

http://10223703.blog.51cto.com/10213703/1650040

http://10223703.blog.51cto.com/10213703/1650042

http://bbs.php100.com/read-htm-tid-600124-ds-1.html

http://home.open-open.com/space-480996.html

http://bbs.360safe.com/thread-5731303-1-1.html

http://bbs.360safe.com/thread-5731305-1-1.html

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