1、获取打印机状态信息
2、读取打印机状态
3、用API直接打印
4、获取打印页边距 -1, access to printer status information 2, read the printer status 3, with API direct printing 4, access to print Margins
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002146s ]
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:0.086095s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001960s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002095s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002140s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003807s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002188s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004351s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015839s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002828s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 318586 [ RunTime:0.001267s ]
