通讯录管理系统，包括可行性研究，需求分析，整体设计，再详细设计，编码实现，测试-Address book management system, including feasibility studies, needs analysis, the overall design, then detailed design, coding, implementation, testing,
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001353s ]
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:0.092781s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001456s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002032s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001283s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003875s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001189s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003412s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015020s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001430s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 241670 [ RunTime:0.001447s ]
