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搜索不到ble设备 - App应用开发 - 清泛IT社区，为创新赋能！
使用AI伴侣能搜索到ble设备，但是安装apk后搜索不到,这是怎么回事呢大概率是权限问题，在手机设置将 app 相关权限都打开试试，尤其是发现设备等权限。
App Inventor 2 蓝牙BLE扩展源码分析 - WriteBytes vs WriteStrings 23字节...
... App Inventor 2 蓝牙BLE扩展源码分析 - WriteBytes vs WriteStrings 23字节硬编码问题
一、问题背景
二、核心发现：23字节硬编码限制
2.1 WriteStrings 的写入路径...
How to add “active” class to Html.ActionLink in ASP.NET MVC
...t groups them together in a logical manner.
– René Kåbis
Apr 28 '16 at 18:29
@René Kåbis it for bootstrap naigatio...
Convert a Unicode string to a string in Python (containing extra symbols)
...
See unicodedata.normalize
title = u"Klüft skräms inför på fédéral électoral große"
import unicodedata
unicodedata.normalize('NFKD', title).encode('ascii', 'ignore')
'Kluft skrams infor pa federal electoral groe'
...
Why should we NOT use sys.setdefaultencoding(“utf-8”) in a py script?
I have seen few py scripts which use this at the top of the script. In what cases one should use it?
4 Answers
...
使用虚拟现实和App Inventor进行实验 · App Inventor 2 中文网
...单 - 就 App Inventor 编程块而言。它们仅使用 ActivityStarter 组件来启动与 MITVRHelper 辅助应用程序一起打包的活动之一。ActivityStarter 需要指定要启动哪个活动，以及要处理哪个全景图或对象模型文件。通过设置 ActivityStarter 的 DataURI ...
How to print Unicode character in Python?
...o write results to a file. This solved it for me.
– Pål Thingbø
Oct 18 '17 at 8:52
Thank you so much. Spent hours go...
How does one unit test routes with Express?
...ered Nov 17 '15 at 8:30
Marcus RådellMarcus Rådell
54244 silver badges1111 bronze badges
...
App Inventor 2 蓝牙发送十六进制字节方案：文本转Hex字节详解 - App应用开...
...，代码清晰且通用。
如有疑问欢迎回帖讨论！
补充：BLE 扩展源码分析与 WriteShorts 对比有同学问到：BLE 扩展的 WriteShorts 能不能实现这个需求？
结论是：能用，但有坑，不推荐。下面从源码角度详细分析。
1. 为什么直接传...
How to strip HTML tags from a string in SQL Server?
...TMLText = replace(@htmlText, 'é' collate Latin1_General_CS_AS, 'é' collate Latin1_General_CS_AS)
set @HTMLText = replace(@htmlText, 'ê' collate Latin1_General_CS_AS, 'ê' collate Latin1_General_CS_AS)
set @HTMLText = replace(@htmlText, 'ë' collate Latin1_General_CS_A...