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将 App Inventor 2 项目连接到外部传感器 · App Inventor 2 中文网
...ect in the MIT Department of Electrical Engineering and Computer Science. Funding to support this work was provided by Google ATAP
Introduction
App Inventor is a visual “blocks” based language for programming Android apps. It gives users the ability to easily learn, create, and prototype in a ...
分享几个App Inventor 2“隐藏”的非常的实用的小技巧 - App Inventor 2 中...
...入任意内容：
3、Any代码块，代码整洁之道：https://www.bilibili.com/video/BV1Xj41147cn/
4、代码块导出图像，以及还原：https://www.fun123.cn/reference/other/download-pngs.html
5、iOS界面外观
6、过程参数，鼠标悬停时，可直接拖动...
App Inventor 2 最新QA汇总 - App Inventor 2 中文网 - 清泛IT社区，有思想、有深度
...补充进了文档，是官方的中文化升级版本。参考：https://www.fun123.cn/reference/info/ReleaseNotes.html
Q：ai2Starter模拟器中AI伴侣版本过旧，可否升级到最新版本？
A：有办法，但是过程较为复杂，需要一定的技术功底。而且这个模拟...
What's the $unwind operator in MongoDB?
... of unwind stages. This query:
db.companies.aggregate([
{ $match: {"funding_rounds.investments.financial_org.permalink": "greylock" } },
{ $project: {
_id: 0,
name: 1,
amount: "$funding_rounds.raised_amount",
year: "$funding_rounds.funded_year"
} }
])
...
Better techniques for trimming leading zeros in SQL Server?
...IGINT, some types of string will still fail this conversion. Consider 0001E123 for example.
– roaima
Sep 2 '15 at 12:14
1
...
css让background-color在background-img的上边显示，且背景图片居中 - 更多...
...<div class="content" style="max-height:700px; background:green url(https: www fun123 cn css让background-color在background-img的上边显示，且背景图片居中的代码如下：
<div class="content" style="max-height:700px;
background:green url(https://www.fun123.cn/img/itso.png) no-...
蓝牙BLE硬件接入及IO控制 · App Inventor 2 源码商店
...入及IO控制功能，不提供技术支持。配套的文档：https://www.fun123.cn/reference/iot/ble.html 源码购买 ￥3.8 ...
个性化酷炫的导航条 · App Inventor 2 源码商店
...个Tab选中可在属性中设置facetype，定制字体文档：https://www.fun123.cn/reference/extensions/navbar.html 源码购买 ￥4.8 ...
手机短信验证码功能 · App Inventor 2 源码商店
...，可以发送任意短信模板的短信内容！技术文档：https://www.fun123.cn/reference/pro/alisms.html 源码购买 ￥118 ...