一个C++智能指针的简单实现，可以自动管理回收new操作符分配的内存，不用担心内存泄漏。-a smart simple realization of the target, it will automatically manage the retrieval new operator allocated memory and need not worry about a memory leak.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002398s ]
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:0.120268s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002540s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.003316s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.003378s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.008920s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.005353s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.005627s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.024243s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.003315s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 63649 [ RunTime:0.004489s ]
