使用分形迭代算法，画出一棵简单的分支的树。没有树叶。顶端形成扇形，类似银杏树叶。-use fractal iterative algorithm, to give a simple tree branch. No leaves. Fan top form, similar ginkgo leaves.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001905s ]
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:0.086812s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002357s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002051s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002201s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003615s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001957s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003262s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015433s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002506s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 129811 [ RunTime:0.001162s ]
