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BLE 接收BLE模块发来的信息 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...-1.html
读取ble数据并显示在App上请参考文档：https://www.fun123.cn/reference/ ... ml#RegisterForBytes
请先自行研究一下，如果遇到具体的问题，请再继续跟帖提问，谢谢。App Inventor 2 发表于 2024-09-24 16:15
ble 设备连接，发送数据...
怎么通过app inventor接收mqtt平台推送的长消息 - App Inventor 2 中文网 -...
...码的图片，可以是使用拓展解码还原成图片：https://www.fun123.cn/reference/ ... A%E5%AA%92%E4%BD%93我想制作一个门禁系统，把摄像头采集的图片通过MQTT平台发送给app inventor我的手机现在可以接收到短消息，这个BASE64编码数据直接接收不到...
如何实现设置用户头像功能呢？ - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...面的组件可以实现，具体用法参考中文文档：https://www.fun123.cn/reference/components/media.html
App Inventor 2 发表于 2024-11-17 18:58
多媒体下面的组件可以实现，具体用法参考中文文档：https://www.fun123.cn/reference/components/media.h ...
这...
GestureDetector 手势检测拓展：识别向上/向下/向右/向左滑动和双击等手势...
...mmunity.kodular.io/t/f ... d-doubleclick/94542
已整理：https://www.fun123.cn/reference/ ... /gesturedetect.htmlhttps://www.fun123.cn/reference/other/extensionsMultitouch.html
https://www.fun123.cn/reference/other/extensionsRotation.html
待一起分析、整理。
How to get the last character of a string in a shell?
...wered Jul 16 '15 at 9:20
mr.baby123mr.baby123
1,7841919 silver badges1212 bronze badges
...
Map vs Object in JavaScript
...d Symbol keys where as Maps support more or less any key type.
If I do obj[123] = true and then Object.keys(obj) then I will get ["123"] rather than [123]. A Map would preserve the type of the key and return [123] which is great. Maps also allow you to use Objects as keys. Traditionally to do this y...
How can Bash execute a command in a different directory context?
... Using a subshell is a much better solution
– josh123a123
Apr 19 '16 at 14:31
For scripting, a subshell is probably...
How to write a simple database engine [closed]
...rt of each column to have the length of this column
like "Adam", 1, 11.1, "123 ABC Street POBox 456"
you can have it like
<&RowHeader, 1><&Col1,CHR, 4>Adam<&Col2, num,1,0>1<&Col3, Num,2,1>111<&Col4, CHR, 24>123 ABC Street POBox 456<&RowTrailer...
Safe integer parsing in Ruby
I have a string, say '123' , and I want to convert it to the integer 123 .
8 Answers
...
How to change a django QueryDict to Python Dict?
...s Arrays you can do the following:
# request = <QueryDict: {u'key': [u'123ABC']}>
dict(zip(request.GET.keys(), request.GET.values()))
{u'key': u"123ABC" }
# Only work for single item lists
# request = <QueryDict: {u'key': [u'123ABC',U 'CDEF']}>
dict(zip(request.GET.keys(), request.GET....