使用IFS文法来编制棵树。通过单击屏幕窗口的绘图按钮，可以看到这棵树绘制出来的样子。-use grammar to prepare trees. By clicking the window screen graphics button, we can see this tree mapping out the victims.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002305s ]
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:0.102457s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002597s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002104s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002536s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003758s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002907s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003349s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015895s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002759s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 129788 [ RunTime:0.001270s ]
