日志函数。打印信息的默认级别为info，也可通过参数的传入决定打印级别。打印信息写入固定日志文件，或通过参数控制打印到标准输出。-The log function. The default level of print information for info, can also be passed through the decision to print-level parameters. The fixed print information to write the log file, or through the parameters to control printing to standard output.
文 件 列 表
program_log test Makefile DB count db.c db.h db.o log.c log.h log.log log.o test.c test.o
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001210s ]
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:0.084621s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000960s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001183s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000980s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003763s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000944s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003982s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016860s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001100s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 229873 [ RunTime:0.017062s ]
