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使用虚拟现实和App Inventor进行实验 · App Inventor 2 中文网

...们 发布日志 服务条款 教育 入门必读 中文教程 IoT专题 AI2拓展 ChatGPT接入 Aia Store 开通VIP 搜索 ...
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App Inventor 2 低功耗蓝牙 BlueToothLE 拓展 · App Inventor 2 中文网

...们 发布日志 服务条款 教育 入门必读 中文教程 IoT专题 AI2拓展 ChatGPT接入 Aia Store 开通VIP 搜索 ...
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从Sloodle看三维虚拟学习环境的发展趋势 - 资讯 - 清泛网 - 专注C/C++及内核技术

...时间为每周四上午 6点)都会有老师对新学员进行 Sloodle的入门培训 ,讲课内容是完全开放的 ,甚至不需要在社区注册即可进入课堂。 三维虚拟学习环境的发展趋势 我们不可否认书面教材对学习的重要性 ,然而随着技术的...
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CGRidCtrl控件 学习心得 - C/C++ - 清泛网 - 专注C/C++及内核技术

...示: 图11 4 实例以外的思考 本实例仅作为入门学习使用。在本实例的基础上,读者可以进一步思考以下两个问题: 1) 如何实现单元格的合并、拆分操作。 2) 如何从CGridCell继承,自定义一个类似CGridCellCheck...
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LINGO使用指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...O高效的求解器可快速求解并分析结果。 §1 LINGO快速入门 当你在windows下开始运行LINGO系统时,会得到类似下面的一个窗口: 外层是主框架窗口,包含了所有菜单命令和工具条,其它所有的窗口将被包含在主窗口之下。在...
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generate days from date range

...) + (100 * c.a) + (1000 * d.a) ) DAY as Date from (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as a cross join (select 0 as a union all select 1 union...
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Can someone explain __all__ in Python?

I have been using Python more and more, and I keep seeing the variable __all__ set in different __init__.py files. Can someone explain what this does? ...
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How do Python's any and all functions work?

I'm trying to understand how the any() and all() Python built-in functions work. 8 Answers ...
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How to fetch all Git branches

... You can fetch all branches from all remotes like this: git fetch --all It's basically a power move. fetch updates local copies of remote branches so this is always safe for your local branches BUT: fetch will not update local branch...
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PostgreSQL - how to quickly drop a user with existing privileges

... experimenting. Is there any way to drop the user without having to revoke all his rights manually first, or revoke all the grants a user has? ...