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Blocks and yields in Ruby

... gift from foo!") if block_given? end foo(10) # OK: called as foo(10) foo(123) {|y| puts "BLOCK: #{y} How nice =)"} # OK: called as foo(123) # BLOCK: A gift from foo! How nice =) Or, using the special block argument syntax: def bar(x, &block) puts "OK: called as bar(#{x.inspect})" block....
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What is the benefit of zerofill in MySQL?

... y INT(8) NOT NULL); INSERT INTO yourtable (x,y) VALUES (1, 1), (12, 12), (123, 123), (123456789, 123456789); SELECT x, y FROM yourtable; Result: x y 00000001 1 00000012 12 00000123 123 123456789 123456789 ...
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partial string formatting

...n't 100% control. Imagine: "{foo} {{bar}}".format(foo="{bar}").format(bar="123") from the other examples. I would expect "{bar} 123" but they output "123 123". – Benjamin Manns Sep 21 '18 at 13:53 ...
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App Inventor 2 最新QA汇总 - App Inventor 2 中文网 - 清泛IT社区,有思想、有深度

...进了文档,是官方的中文化升级版本。参考:https://www.fun123.cn/reference/info/ReleaseNotes.html Q:ai2Starter模拟器中AI伴侣版本过旧,可否升级到最新版本? A:有办法,但是过程较为复杂,需要一定的技术功底。而且这个模拟器速...
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分享几个App Inventor 2“隐藏”的非常的实用的小技巧 - App Inventor 2 中...

...1Xj41147cn/ 4、代码块导出图像,以及还原:https://www.fun123.cn/reference/other/download-pngs.html 5、iOS界面外观 6、过程参数,鼠标悬停时,可直接拖动获取和设置的代码块;参数可变:https://www.fun123.cn/reference/concepts/mutators.html...
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2024 全“心”出发 -- 全新App Inventor 2 移动社区开启新征程 - App Inven...

...努力! 为什么使用两个独立的域名:bbs.tsingfun.com 和 fun123.cn? fun123.cn 作为纯粹的App Inventor 2 中文编程平台,及中文文档教程平台;bbs.tsingfun.com作为社区及App Inventor 2之外技术的讨论,看起来独立,实际则是可以融为一体的。...
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Appinventor的人工智能组件在哪里? - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

...个是AI绘图。 更多指导,请查看中文文档:https://www.fun123.cn/reference/ ... mental.html#ChatBot 另外,除了调用ChatGPT外,还有很多拓展可以自行训练AI数据集,自行实现AI功能, 详见:[hide]https://www.fun123.cn/reference/extensions/[/hide] ...
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BLE 接收BLE模块发来的信息 - 创客硬件开发 - 清泛IT社区,为创新赋能!

...-1.html 读取ble数据并显示在App上请参考文档:https://www.fun123.cn/reference/ ... ml#RegisterForBytes 请先自行研究一下,如果遇到具体的问题,请再继续跟帖提问,谢谢。App Inventor 2  发表于 2024-09-24 16:15 ble 设备连接,发送数据...
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如何实现设置用户头像功能呢? - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

...面的组件可以实现,具体用法参考中文文档:https://www.fun123.cn/reference/components/media.html App Inventor 2  发表于 2024-11-17 18:58 多媒体下面的组件可以实现,具体用法参考中文文档:https://www.fun123.cn/reference/components/media.h ... 这...
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Why is isNaN(null) == false in JS?

... Won't work if myInt="123d". parseInt converts "123d" to 123, which then fails the isNaN test. – divesh premdeep Feb 18 '15 at 13:34 ...