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App Inventor 2 蓝牙客户端，设备列表为空？ - 创客硬件开发 - 清泛IT社区...
...意，经典蓝牙 spp 使用蓝牙客户端组件，用的是列表显示框.元素列表（列表类型数据）；而 ble 低功耗蓝牙使用 bluetoothle 拓展，用列表显示框.元素字串（逗号分隔的字符串）
而设备列表为空，如果代码没有问题，那就是 app ...
MIT已发布v2.75版本，中文网已同步升级最新版本 - App Inventor 2 中文网 -...
...，才能与大家分享。
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列表显示框组件有进一步的改进在上个版本（2022）中，列表显示框可以同时显示图片、主项及细项三部分内容，这个版本延续了这一功能，并在显示样式方面做了一些改进。首先，...
how to change namespace of entire project?
... answered Sep 7 '15 at 13:50
Selçuk ErmayaSelçuk Ermaya
4733 bronze badges
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Upload file to FTP using C#
...ered Mar 7 '13 at 10:37
Björn MårtenssonBjörn Mårtensson
69155 silver badges1515 bronze badges
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BLE（一）概述&工作流程&常见问题 - 创客硬件开发 - 清泛IT社区，...
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0x1 BLE概述“蓝牙”，即Bluetooth，是斯堪的纳维亚语中 Blåtand / Blåtann 的英化版本。该词是十世纪的一位国王Harald Bluetooth的绰号，相传他将纷争不断的丹麦部落统一为一个王国，并引入了基督教。蓝牙技术开发者Jim Kardach于1997...
Suppress deprecated import warning in Java
In Java, if you import a deprecated class:
6 Answers
6
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How do I adb pull ALL files of a folder present in SD Card
...ff the sd card but exclude one of the sub paths
– GµårÐïåñ
Feb 8 '16 at 1:11
I wonder if Android has tar? A sim...
u'\ufeff' in Python string
...परीक्षा|പരിശോധന|פּרובירן|kiểm tra|Ölçek|'
e8 = u.encode('utf-8') # encode without BOM
e8s = u.encode('utf-8-sig') # encode with BOM
e16 = u.encode('utf-16') # encode with BOM
e16le = u.encode('utf-16le') # encode without BOM
e16be = u.encode('ut...
Is there a job scheduler library for node.js? [closed]
... answered Jun 12 '14 at 4:43
XåpplI'-I0llwlg'I -XåpplI'-I0llwlg'I -
17.9k2323 gold badges9494 silver badges143143 bronze badges
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Remove an item from a dictionary when its key is unknown
...wn. This answer assumes the key is known.
– Jean-François Corbett
Aug 8 '18 at 17:16
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