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micro:bit 连接报错 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...运行故障
java.lang.ExceptionInInitializerError at edu.mit.appinventor.ble.BluetoothLEint$BLEReadOperation.subscribeBluetoothLEint.java:357) at
edu.mit.appinventor.ble.BluetoothLEintSBLEReadOperation.run(BluetoothLEint.java:325) at android.os.Handler.handleCallback(Handler.java:1013) at
androi...
App Inventor 2 UrsPahoMqttClient 拓展 - 物联网轻量级MQTT协议 · App Inventor 2 中文网
...额外的 JavaScript 或外部配置文件。此处介绍的 MQTT 客户端组件完全独立工作，不需要任何外部元素。它完全支持 MQTT 协议版本 3.1.1（除了这一点例外：订阅和取消订阅只能指定单个主题，而不能是列表。App Inventor 无法很好地处...
Remove accents/diacritics in a string in JavaScript
..., ü -> ue, Ä -> Ae, Ö -> Oe, Ü -> Ue, å -> aa, Å -> Aa, ß -> ss, ẞ -> SS,
– Marius
Jul 13 '17 at 18:28
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HTML5 Canvas vs. SVG vs. div
What is the best approach for creating elements on the fly and being able to move them around? For example, let's say I want to create a rectangle, circle and polygon and then select those objects and move them around.
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Printing all global variables/local variables?
How can I print all global variables/local variables? Is that possible in gdb?
3 Answers
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TCPServer TCP服务器扩展：在Android设备上创建TCP服务器 · App Inventor 2 中文网
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基本用法
在设计器中添加 TCPServer 组件
设置 LocalPort 属性（例如 8083）
在屏幕初始化时调用 Start() 方法启动服务器
使用 MessageReceived 事件处理收到的消息
使用 Writeln() 方法向客户端发送响应
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How do I get user IP address in django?
... answered May 12 '11 at 9:38
SævarSævar
1,38788 silver badges1212 bronze badges
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Visual Studio 2010 - C++ project - remove *.sdf file
... answered Oct 9 '11 at 22:28
Håvard SHåvard S
20.4k55 gold badges5555 silver badges6767 bronze badges
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java.net.URLEncoder.encode(String) is deprecated, what should I use instead?
...nswered Oct 23 '19 at 23:23
R. KåbisR. Kåbis
3155 bronze badges
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Easiest way to detect Internet connection on iOS?
...through HTTPUrlConnection instantly fail if there is no connection available. This seems like completely sane behavior, and I was surprised to find NSURLConnection in iOS did not emulate it.
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