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为什么会提示AppInventor2.exe 不是有效的 Win32 - App Inventor 2 离线版 ...

本帖最后由 lmn2005 于 2025-04-15 18:35 编辑 电脑系统为64位win7,安装AppInventor2后运行,提示C:\AppInventor2\AppInventor2.exe 不是有效的 Win32 应用程序 这是为什么? https://aka.ms/vs/16/release/vc_redist.x64.exe 装一个运行环境试试,如果还...
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想试着做一个间歇运动的计时 - App应用开发 - 清泛IT社区,为创新赋能!

本帖最后由 碳水哥斯拉 于 2025-05-08 23:37 编辑 用deepseek生成了代码 使用AI2 遇到了问题 to formatTime seconds   set minutes to (seconds / 60)   set secs to (seconds - (minutes * 60))   return join strings( padZero(minutes), ":",...
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Modbus硬件控制01——什么是Modbus - 创客硬件开发 - 清泛IT社区,为创新赋能!

本帖最后由 mzb2012 于 2025-06-19 12:37 编辑 Modbus算是嵌入式领域比较经典一种通信协议,不管你是初学者,还是工作多年的工程师,都很有必要了解一下。1.什么是Modbus?1.什么是Modebus它是一个Bus,即总线协议。比如串口协议、IIC...
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ActionBar 拓展:溢出菜单 - App Inventor 2 拓展 - 清泛IT社区,为创新赋能!

...默认情况下,App Inventor 并没有直接提供一个图形组件来编辑这个菜单,但我们可以使用 "ActivityStarter" 或通过调用系统菜单事件来实现自定义内容哦! ✅ 实现方法:使用 Screen 的 OptionsMenu 相关事件 App Inventor 提供了两...
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Modbus硬件控制02——modbus继电 - 创客硬件开发 - 清泛IT社区,为创新赋能!

本帖最后由 mzb2012 于 2025-07-15 12:26 编辑 一、概述 该模块是一款以专用集成电路为核心的经济型MODBUS-485继电模块,实现了标准MODBUS-485通信功能。它可以与9V,12V或24V电压配合使用。本模块支持所有常见波特率、停止位和校验...
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Getting started with Haskell

...second this. Also, since it's not obvious, here's a link to a downloadable pdf version of the tutorial: learnyouahaskell.com/learnyouahaskell.pdf The webdesign is great, but I like to have a copy for the subway too. – Telemachus Jun 18 '09 at 13:25 ...
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/data/user/0/xxxx/files(内部存储)和 /storage/emulated/0/Android/data...

...册应用可能将缓存图片放在此处,用户能看到但无法直接编辑。 内部存储: 完全对用户隐藏,即使启用“显示隐藏文件”也无法查看。 (2) 媒体扫描外部存储私有目录: 默认会被媒体扫描(MediaStore)忽略,文件不会出现...
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No visible cause for “Unexpected token ILLEGAL”

...so could be happening if you're copying code from another document (like a PDF) into your console and trying to run it. I was trying to run some example code out of a Javascript book I'm reading and was surprised it didn't run in the console. Apparently, copying from the PDF introduces some unexpe...
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How to perform better document version control on Excel files and SQL schema files

... [diff "xls"] binary = true textconv = /usr/bin/py_xls2txt [diff "pdf"] binary = true textconv = /usr/bin/pdf2txt [diff "doc"] binary = true textconv = /usr/bin/catdoc [diff "docx"] binary = true textconv = /usr/bin/docx2txt The Pro Git book has a good chapter on t...
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Programmatically creating Markdown tables in R with KnitR

... Yes, nope. Will work with Markdown-->HTML but not with Markdown-->PDF, Markdown-->DOCX ... The question is about using Markdown in general not only for the purpose of creating HTML files with it -- might have been your intention, but is not written down there. – pet...