实现缩略图一般功能，将指定文件名的图片缩略显示，支持bmp和jpg格式-General function of the realization of the thumbnails to specify the file name of picture abbreviated show that support for bmp and jpg format
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002013s ]
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:0.086377s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002334s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001933s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002306s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003633s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002113s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003293s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014171s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002530s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 236031 [ RunTime:0.001198s ]
