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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),...
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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...
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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...
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How to reset db in Django? I get a command 'reset' not found error

... edited May 14 at 12:17 Håken Lid 15.9k77 gold badges3535 silver badges5555 bronze badges answered Aug 30 '13 at 22:06 ...
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Can't push to GitHub because of large file which I already deleted

Currently I have 18 Answers 18 ...
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CentOS+Nginx+PHP+MySQL详细配置(图解) - PHP - 清泛IT论坛,有思想、有深度

...PHP-FPM说白了是一个管理FastCGI的一个管理器,它作为PHP的插件纯在,在安装PHP要想使用PHP-FPM时就需要把PHP-FPM以补丁的形式安装到PHP中,而且PHP要与PHP-FPM版本一致,这是必须的,切记!       首先我们把PHP和PHP-FPM...
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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
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Can you pass parameters to an AngularJS controller on creation?

...nswered Feb 13 '14 at 10:23 François RomainFrançois Romain 9,1131212 gold badges7373 silver badges108108 bronze badges ...
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How to remove the first character of string in PHP?

How to use PHP , Remove the first character : 13 Answers 13 ...