大约有 42,000 项符合查询结果(耗时:0.0463秒) [XML]

https://bbs.tsingfun.com/thread-1622-1-1.html 

MQTT相关知识研究笔记 - 创客硬件开发 - 清泛IT社区,为创新赋能!

...https://mosquitto.org/download/ 2、与Node-RED有啥区别?Node-RED 一种编程工具,用于以新颖有趣的方式将硬件设备、API 和在线服务连接在一起。 Node-RED 一个流程化的工具,不MQTT网关,它能整合各种资源包括MQTT网关、微信推送...
https://bbs.tsingfun.com/thread-1636-1-1.html 

App Inventor 2 图片打水印如何实现? - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

问:图片水印的这个问题,你们这个功能能做不? 答: 1、水印可以通过画布,叠加一个图片,再画布.保存实现。 2、通过拓展实现:ImageUtil 拓展。 参考:https://community.appinventor.mi ... rmark-image/76113/3
https://bbs.tsingfun.com/thread-1763-1-1.html 

AppInventor2添加超过10个屏幕会怎样? - App Inventor 2 中文网 - 清泛IT...

...件、布局都在一屏上,通过控制显示、隐藏来实现切换)不错的选择。
https://www.tsingfun.com/it/ai... 

【学习合作计划】用费曼学习法快速提升你的App Inventor技能! - App Inven...

...App Inventor技能!ai2_study_plan亲爱的App Inventor爱好者们,你否在学习App Inventor的过程中遇到过瓶颈?否渴望快速提升自己的技能,却苦于找不到合适的方法?现在,一个前所未有的机会摆在你的面前!我 亲爱的App Inventor爱...
https://bbs.tsingfun.com/thread-2204-1-1.html 

安卓App可以实现从其他App的目录中拷贝文件吗? - App应用开发 - 清泛IT社...

...箱机制 每个app运行在自己的沙箱中,私有目录对其他app完全隔离的,即使知道包名和路径也无法直接访问。 Root权限 有安全风险,不建议。
https://bbs.tsingfun.com/thread-2644-1-1.html 

【解决】ble蓝牙 RequestMTU 请求没有反应?设置没有生效? - 创客硬件开发...

... [hide] (建议写法) 2、MTUChanged 事件成功触发,但值不指定的值? (确认硬件最大支持 500 MTU) https://www.fun123.cn/reference/iot/bluetoothle.html#RequestMTU 看文档,它不一定能设置到你指定的值,双方协商的结果,以事...
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Best way in asp.net to force https for an entire site?

...Startup.cs app.UseHpkp(options => options .Sha256Pins( "Base64 encoded SHA-256 hash of your first certificate e.g. cUPcTAZWKaASuYWhhneDttWpY3oBAkE3h2+soZS7sWs=", "Base64 encoded SHA-256 hash of your second backup certificate e.g. M8HztCzM3elUxkcjR2S5P4hhyBNf6lHkmjAHKhpGPWE=") ...
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How to check if command line tools is installed

...n irrespective of what macOS version is $brew config macOS: 10.14.2-x86_64 CLT: 10.1.0.0.1.1539992718 Xcode: 10.1 This when you have Command Line tools properly installed and paths set properly. Earlier i got output as below macOS: 10.14.2-x86_64 CLT: N/A Xcode: 10.1 CLT was shown as N/A in ...
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Pandas selecting by label sometimes return Series, sometimes returns DataFrame

...0 2 11 3 12 3 13 ------- df.loc[2] -------- 0 11 Name: 2, dtype: int64 type(df.loc[1]) : <class 'pandas.core.series.Series'> --------- df[0] ---------- 2 11 3 12 3 13 Name: 0, dtype: int64 type(df[0]) : <class 'pandas.core.series.Series'> So, there is no sense to pre...
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Map function in MATLAB?

...rrayfun(@(x) x^2, 1:10) y = 1 4 9 16 25 36 49 64 81 100 There are two other built-in functions that behave similarly: cellfun (which operates on elements of cell arrays) and structfun (which operates on each field of a structure). However, these functions are oft...