电子技术项目化教程-畅读网

　　　　

电子技术项目化教程

作者：王艳芬

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内容简介:

本书对电子技术的基本概念、基本理论和基本方法都做了必要而适当的阐述，以项目教学的方式介绍实际工程应用电路。本书以分立元件为基础，以集成电路为重点，加强数字电路，主要介绍性能优越的CMOSHC系列和TTLLS系列，在每个项目的后面加入实训内容，用来培养学生器件测试常识，掌握电路调试方法、电路设计方法和分析方法，在紧扣基本内容的同时突出了应用，尤其加强了集成器件应用的介绍，对电路的分析则大为简化，可操作性和适用性很强。

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SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 62 LIMIT 1 [ RunTime:0.002990s ]
SELECT `a`.*,`ap`.`width`,`ap`.`height` FROM `ls_ad` `a` INNER JOIN `ls_ad_position` `ap` ON `a`.`pid`=`ap`.`id` WHERE `pid` = 11 AND `ap`.`client` = '2' AND `a`.`status` = '1' AND `a`.`del` = '0' AND `ap`.`status` = '1' AND `ap`.`del` = '0' ORDER BY `sort` DESC,`id` DESC [ RunTime:0.000461s ]
SELECT `a`.*,`ap`.`width`,`ap`.`height` FROM `ls_ad` `a` INNER JOIN `ls_ad_position` `ap` ON `a`.`pid`=`ap`.`id` WHERE `pid` = 14 AND `ap`.`client` = '2' AND `a`.`status` = '1' AND `a`.`del` = '0' AND `ap`.`status` = '1' AND `ap`.`del` = '0' ORDER BY `sort` DESC,`id` DESC [ RunTime:0.003075s ]
SELECT * FROM `ls_goods` WHERE `del` = 0 AND `status` = 1 AND `create_time` <= 1775643940 ORDER BY `create_time` DESC LIMIT 5 [ RunTime:0.343546s ]

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