手机App编程及应用-畅读网

　　　　

手机App编程及应用

作者：龙兴明

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内容简介:

本书以App Inventor为编程环境，以Android系统智能手机内置和外扩的力、热、声、光、电、磁传感器为硬件设备，借助图形化编程软件，将物理学的基本概念和规律融入综合实践项目中。项目内容来源于具体生活，具有较强的趣味性；项目设计按照探究学习过程循序渐进地展开，具有很好的可行性和实践性。通过凝练物理学科概念，创设真实生活情境，亲历科技创新实践，逐步培养学生的物理核心素养，使科学探究深入人心。

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SHOW FULL COLUMNS FROM `ls_nav` [ RunTime:0.003740s ]
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SHOW FULL COLUMNS FROM `ls_friendly_link` [ RunTime:0.003280s ]
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SHOW FULL COLUMNS FROM `ls_ad` [ RunTime:0.003560s ]
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SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 3 LIMIT 1 [ RunTime:0.001426s ]
SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 38 LIMIT 1 [ RunTime:0.001424s ]
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:0.001915s ]
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:0.002568s ]
SELECT * FROM `ls_goods` WHERE `del` = 0 AND `status` = 1 AND `create_time` <= 1771433770 ORDER BY `create_time` DESC LIMIT 5 [ RunTime:0.742870s ]

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