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MQTT物联网协议完全实践指南 · App Inventor 2 中文网
...载资源
MQTT扩展下载：
de.ullisroboterseite.ursai2pahomqtt.aix
完整示例项目：
mqtt_demo.aia
MQTT协议深度解析
1. 协议架构与通信模式
MQTT采用客户端-服务器架构，基于发布/订阅（Publish/Subscrib...
Why is auto_ptr being deprecated?
I heard auto_ptr is being deprecated in C++11. What is the reason for this?
5 Answers
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Node.js vs .Net performance
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OPTION (RECOMPILE) is Always Faster; Why?
I encountered an odd situation where appending OPTION (RECOMPILE) to my query causes it to run in half a second, while omitting it causes the query to take well over five minutes.
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Text size and different android screen sizes
I know, it was discussed already 1000 times, but I can't adjust the text size for different screen sizes. I try to use 'sp' as size units in my custom style:
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Get operating system info
I recently started wondering about sites like http://thismachine.info/ that get the user's operating system info. I have not been able to find out how to do that with PHP, and wanted to try to figure it out.
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What are the differences between NP, NP-Complete and NP-Hard?
What are the differences between NP , NP-Complete and NP-Hard ?
11 Answers
11
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A complete solution to LOCALLY validate an in-app receipts and bundle receipts on iOS 7
I have read a lot of docs and code that in theory will validate an in-app and/or bundle receipt.
3 Answers
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How can I record a Video in my Android App.?
How can I capture a video recording on Android?
10 Answers
10
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Is there a list of screen resolutions for all Android based phones and tablets? [closed]
If not, is there a list of screen resolutions for the most popular Android phones and tablets.
7 Answers
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