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Proper use of the IDisposable interface
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App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 · App Inventor 2 中文网
...接入、数据通信及IO控制
1、硬件接线（特别注意：VCC 3.3v 或 5v 请参阅说明书，不要弄错以免烧坏硬件）
2、串口工具测试
什么是串口工具？
测试与BLE硬件通信（数据透传）
AT控...
Controlling the screenshot in the iOS 7 multitasking switcher
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101
In Preparing Your UI to Run in the Background, Apple says:
Prepare Your UI for the App Sna...
I need to securely store a username and password in Python, what are my options?
...ng a username and password combo. I don't need to create something that is 100% bulletproof (does 100% even exist?), but I would like to involve a good measure of security so at the very least it would take a long time for someone to break it.
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Why must wait() always be in synchronized block
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Where is the .NET Framework 4.5 directory?
I've installed Windows 8, Visual Studio 2012 but don't have a v4.5 directory in %WINDIR%\Microsoft.NET\Framework .
6 Answe...
Use dynamic (variable) string as regex pattern in JavaScript
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To create the regex from a string, you have to use JavaScript's RegExp object.
If you also wan...