邻结表存储的无向图的建立及遍历输出（包括深度优先与广度优先搜索）- The neighbour ties the table to save non- (first first searches
to the chart establishment and the calendar output including depth
with breadth)
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001430s ]
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:0.078208s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000994s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001184s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000901s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003297s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000903s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003807s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016622s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001141s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 115406 [ RunTime:0.016917s ]
