fork和exec系列调用前后，进程在内存的“数据段”，“堆栈段”和“代码段”有什么不同？读了之后，你就会知道了，-fork and exec calls before and after the Series, in memory of the process "of the data", "stack of" and "code of" what"s the difference? After reading, you will know,
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001337s ]
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:0.072794s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001141s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001287s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001074s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003112s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000820s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003872s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014965s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001372s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 121433 [ RunTime:0.020107s ]
