用到内存的序列化和反序列化，与CArchive的区别在于是内存中的，而且可以不分配内存只进行数据量的统计-memory used and the sequence of anti-sequence, and the distinction between CArchive So memory, and can not allocate memory for data only statistics
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001300s ]
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:0.096424s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001198s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002214s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001285s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003855s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001052s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003259s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014443s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001266s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 215384 [ RunTime:0.004052s ]
