从全新的角度阐述Java程序的异常处理、编码规则和组织结构、内存管理、面向对象的设计与实现、性能调整-from new perspective on the Java exception handling procedures, coding rules and organizational structure, memory management, object-oriented design and implementation, performance tuning
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001095s ]
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:0.080216s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001036s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001233s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000955s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003345s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000854s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003685s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.019232s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001279s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 43520 [ RunTime:0.015797s ]
