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App Inventor 2 经典蓝牙(SPP) 硬件接入：hc05 · App Inventor 2 中文网
...常见，这里以hc05为例，介绍一下经典蓝牙模块如何接入AppInventor。
HC05 简单介绍
它有六个引脚，引脚的作用如下：
通过厂商App连接串口测试，发现HC-05模块是经典蓝牙2.0，并不支持蓝牙5.0（低功耗BLE），...
What are the alternatives now that the Google web search API has been deprecated? [closed]
...ans (including use of scripts or web crawlers)..."
– ændrük
Mar 6 '11 at 17:53
18
"Violate the ...
What is scaffolding? Is it a term for a particular platform?
Scaffolding, what is it? Is it a Rails-only thing?
7 Answers
7
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正则表达式 30 分钟入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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正则表达式到底是什么东西？
字符是计算机软件处理文字时最基本的单位，可能是字母，数字，标点符号，空格，换行符，汉字等等。字符串是0个或更多个字符的序列。文本也就是文字，字符串。说某个字符串匹配某个正则...
A simple scenario using wait() and notify() in java
Can I get a complete simple scenario i.e. tutorial that suggest how this should be used, specifically with a Queue?
6 Answe...
Best way to find the intersection of multiple sets?
...ed Dec 11 '19 at 13:08
Jean-François Fabre♦
122k1111 gold badges9797 silver badges156156 bronze badges
answered Mar 29 '10 at 22:55
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TextEnhancer拓展 - 增强App中的文本格式 - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
...cified label.
[size=15.008px]
[size=15.008px]https://community.appinventor.mit.edu/t/free-textenhancer-enhance-text-formatting-in-your-app/111213
What is the best django model field to use to represent a US dollar amount?
I need to store a U.S. $ dollar amount in a field of a Django model. What is the best model field type to use? I need to be able to have the user enter this value (with error checking, only want a number accurate to cents), format it for output to users in different places, and use it to calculate...
Ruby: How to get the first character of a string
How can I get the first character in a string using Ruby?
13 Answers
13
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What's the pythonic way to use getters and setters?
...east a little bit of useful information."
– Jean-François Corbett
Mar 16 '17 at 15:11
7
How is t...