大约有 14,000 项符合查询结果(耗时:0.0152秒) [XML]

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APP INVENTOR硬件交互学习教程07——多个参数上报 - 创客硬件开发 - 清泛IT...

...码,温度和电位计使用随机数生成 // 引脚定义 const int ledPin1 =  5;// the number of the LED pin const int ledPin2 =  6; const int ledPin3 =  3; const int bluePin =  6;// the number of the LED pin const int greenPin =  5; const int...
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App Inventor 2 天气预报App开发 - 第三方API接入的通用方法 · App Inventor 2 中文网

...用第三方天气api,填入必要的参数,通过Web客户端请求url。返回json格式的数据结果,使用AppInventor2解析json结果,显示到App上即可。 第三方天气API介绍 第三方天气的api平台特别多,这里仅以“和风天气”(dev.qweather.com)作为...
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AppInventor2 如何把列表内容显示在标签里? - App应用开发 - 清泛IT社区,...

...格等。更多参考中文文档:https://www.fun123.cn/reference/ ... l#joinwithseparator
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用户反馈ble广播数据收不到 - 用户反馈 - 清泛IT社区,为创新赋能!

https://www.fun123.cn/reference/ ... l#AdvertisementData MCU&物联网: 就用这个函数,serviceuuid怎么填都不对,就是获取个广播数据不知道为什么还需要uuid MCU&物联网: 你看看能搞定这一块吗?要是可以的话我就先买个离线版的,在...
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【二进制】UrsAI2ByteArray 字节数组扩展:读写二进制数据,二进制文件读写...

来源:https://www.fun123.cn/reference/iot/bytearray.html 功能概述 字节数组扩展允许对存储的数据进行顺序和随机访问。随机访问的索引基址(第一个元素的索引)可以使用Base属性设置。可能的值为1(App Inventor中常用)或0(Java或C中常...
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什么是 Hex 编码方式?AppInventor 支持 Hex 编码传输吗? - App Inventor ...

Hex 编码方式通常指: 将二进制数据按十六进制文本形式表示。 也就是:binary data → hex string 使用 ByteArray 拓展可以转换 Hex 编码。 https://www.fun123.cn/reference/ ... l#ByteArray-Methods
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Linux bpftrace学习笔记(持续更新) - 操作系统(内核) - 清泛网移动版 - ...

Linux bpftrace学习笔记(持续更新)Linux-bpftrace-notes图:BPF性能工具及其可见性bpftrace安装请参考:bpftrace-install。1、查看程序在打开哪些文件: bpftrace -e & 39;tracepoint:syscalls:sys_enter_open { printf("%s %s n 图:BPF性能工具及其可见性 ...
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Convert generator object to list for debugging [duplicate]

...using IPython, I sometimes hit a break-point and I want to examine a variable that is currently a generator. The simplest way I can think of doing this is converting it to a list, but I'm not clear on what's an easy way of doing this in one line in ipdb , since I'm so new to Python. ...
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Cocoa: What's the difference between the frame and the bounds?

UIView and its subclasses all have the properties frame and bounds . What's the difference? 12 Answers ...
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Select first row in each GROUP BY group?

As the title suggests, I'd like to select the first row of each set of rows grouped with a GROUP BY . 17 Answers ...