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使用App Inventor 2 控制物联网设备/低功耗蓝牙设备(BLE) · App Inventor 2 中文网

...使用电池电量服务和特性读取 BLE 设备的电池电量。 图 13 显示了用于检索电池电量的块子集。用户创建的另一个示例应用程序是打开和关闭 LED 灯。 另一个例子是,用户能够实现一款应用程序,利用 WICED Sense 上的磁力计并监控...
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How does the getView() method work when creating your own custom adapter?

... Jared Burrows 48.5k2121 gold badges136136 silver badges173173 bronze badges answered Apr 12 '12 at 8:52 JaveJave ...
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Java: Get last element after split

... Dário 1,7101313 silver badges2626 bronze badges answered Jul 25 '09 at 12:03 Jon SkeetJon Skeet ...
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How to convert a char to a String?

... answered Mar 26 '13 at 9:32 WarFoxWarFox 4,43333 gold badges2525 silver badges3131 bronze badges ...
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What does 'COLLATE SQL_Latin1_General_CP1_CI_AS' do?

...uctively ????. – Solomon Rutzky Aug 13 '18 at 22:58 4 You're welcome and nice to hear I somehow m...
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Why is the default value of the string type null instead of an empty string?

... answered Jan 15 '13 at 12:17 HabibHabib 199k2626 gold badges361361 silver badges399399 bronze badges ...
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How to Avoid Response.End() “Thread was being aborted” Exception during the Excel file download

... SteveSteve 1,87622 gold badges1313 silver badges2323 bronze badges ...
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Why does Decimal.Divide(int, int) work, but not (int / int)?

... same result. – Baxter Apr 6 '12 at 13:58 add a comment  |  ...
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Update built-in vim on Mac OS X

... 132 If I understand things correctly, you want to install over your existing Vim, for better or wo...
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Delete a dictionary item if the key exists [duplicate]

... answered Mar 14 '13 at 13:49 Adem ÖztaşAdem Öztaş 15.6k44 gold badges2929 silver badges3737 bronze badges ...