Tree控件的小小应用，本例中将中国各省市名按树状结构展开，树中每一个项目是数据库中的一条记录-Tree Controls small applications, the cases of all provinces will be under a tree structure started every tree is a project of a database record
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002271s ]
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:0.090172s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002302s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001940s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.004855s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.006085s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002736s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.006106s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.025833s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.003400s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 190611 [ RunTime:0.002844s ]
