包括C++语法总结，字符类型，const用法，VC++小知识，经典算法，tips等-Including C++ Syntax summary, character type, const usage, VC++ Small knowledge, the classical algorithm, tips, etc.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001566s ]
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:0.148133s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002395s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001591s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000949s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003142s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001122s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.007016s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.028092s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001168s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 60216 [ RunTime:0.012525s ]
