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串口Read不到数据的问题 - 用户反馈 - 清泛IT社区，为创新赋能！
用户发送的是 8n1 的格式，但是ai2的串口貌似不支持这种格式。写串口正常，读串口为空，len为0。
目前经过测试验证，应该是 \n 作为结束符的。发送时，也是。
ai2使用 physicaloid 库完成的串口功能。
App Inventor 2 经典蓝牙(SPP) 硬件接入：hc05 · App Inventor 2 中文网
... 教育 入门必读 中文教程 IoT专题 AI2拓展 ChatGPT接入 Aia Store 开通VIP 搜索 App Inventor 2 经典蓝牙(SPP) 硬件接入...
Why is the time complexity of both DFS and BFS O( V + E )
...
Your sum
v1 + (incident edges) + v2 + (incident edges) + .... + vn + (incident edges)
can be rewritten as
(v1 + v2 + ... + vn) + [(incident_edges v1) + (incident_edges v2) + ... + (incident_edges vn)]
and the first group is O(N) while the other is O(E)....
Source unreachable when using the NuGet Package Manager Console
...ry, but it kept raising the error: "The source at nuget.org [nuget.org/api/v2/]". I don't know how to fix it though.
– Loudenvier
Jul 1 '15 at 17:17
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jQuery: Select data attributes that aren't empty?
...le for examples:
jQuery v1.11.0 -> jsFiddle online test
jQuery v2.1.0 -> jsFiddle online test
jQuery v2.1.3 -> jsFiddle online test
jQuery v3.0.0-alpha1 -> jsFiddle online test
jQuery v3.1.1 Slim -> jsFiddle online test
jQuery v3.2.1 -> jsFiddl...
How to determine when a Git branch was created?
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74fca6a HEAD@{Wed Jan 20 11:55:43 2010}: checkout: moving from master to v2.6.31
24bc734 HEAD@{Wed Jan 20 11:44:42 2010}: pull : Fast forward
964fe08 HEAD@{Mon Oct 26 15:29:29 2009}: checkout: moving from 4a6908a3a050aacc9c3a2f36b276b46c0629ad91
4a6908a HEAD@{Mon Oct 26 14:52:12 2009}: checkout: ...
使用Activity启动器组件 · App Inventor 2 中文网
...其包名和类名。 如果你有 App Inventor 应用程序的源代码（aia 文件），你可以按如下方式找到这些名称：
将源代码下载到你的计算机。
使用文件资源管理器或解压缩实用程序，找到名为 youngandroidproject/project.properties 的文件。
第...
Conceptually, how does replay work in a game?
...replay was being viewed in Brood War. For those unfamiliar, Brood War contains all of the original units and buildings, as well as a variety of new ones. In the original game, the player had defeated the computer by creating units that the computer could not easily counter. When I played the repl...
list every font a user's browser can display
...n get separated
var testString = "mmmmmmmmmmlli";
//we test using 72px font size, we may use any size. I guess larger the better.
var testSize = '72px';
var h = document.getElementsByTagName("body")[0];
// create a SPAN in the document to get the width of the text we use to te...
View/edit ID3 data for MP3 files
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Does this library support modern ID3v2 tags? Simucal's snippet suggests not (unless he just took part of it).
– James
May 18 '13 at 18:38
...