大约有 40,000 项符合查询结果（耗时：0.0322秒） [XML]
App Inventor 2 动态创建组件功能 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...需要通过拓展实现：
拓展 com.yusufcihan.DynamicComponents.aix 下载地址：
https://www.fun123.cn/reference/ ... mic_components.html
当然也可以通过模板直接创建一个demo程序，基础代码已具备，步骤如下：
项目 -> 导入模板：
选择相应的...
App Inventor 2 中文网 · 升级日志
...新建中文项目名。 全新 解决中文名项目的上传下载问题。 项目指南 关于我们 中文文档 © 2023 - document.write(new Date().getFullYear()); 跟着学（上海）教育科技有限公司 沪ICP备2020034476号-2 沪公网安备3101170200...
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！
...tps://blog.csdn.net/xiaolong11 ... e/details/134280836
Mosquitto 安装包下载：https://mosquitto.org/download/
2、与Node-RED有啥区别？Node-RED 是一种编程工具，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 是一个流程化的...
TaifunFlashlight 手电筒/闪光灯拓展 - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
...灯
过程
打开闪光灯
关闭闪光灯
示例程序
.aix 下载：
为什么条码扫描器开始工作时，通过taifunflashlight打开的手电筒就自动关闭了，能否在条码扫描器工作的同时手电筒也能同时工作？这样在黑暗的地方扫码时...
What is the quickest way to HTTP GET in Python?
...
@lawphotog this DOES work with python3, but you have to pip install requests.
– akarilimano
Feb 1 '18 at 10:29
...
How to repeat last command in python interpreter shell?
...2.04, I had this problem after installing a version of Python from source (Python3.4).
Some of the comments here recommend installing Ipython and I want to mention that I have the same behavior even with Ipython. From what I can tell, this is a readline problem.
For Ubuntu 12.04 server, I had t...
Print a list in reverse order with range()?
...
In Python3, reversed does not accept generators in general but it accepts range. Why would reversed(range(10000)) need to allocate memory for the whole list? range can return an object that implements the __reversed__ method tha...
How do I check whether a file exists without exceptions?
...
Wait, so pathlib2 < pathlib? pathlib is for python3, right? I've been using pathlib2 thinking it was superior.
– theX
Jul 2 at 21:26
add a comme...
How do I get list of methods in a Python class?
...og_name', <unbound method OptionParser.expand_prog_name>),
...
]
# python3
>>> inspect.getmembers(OptionParser, predicate=inspect.isfunction)
...
Notice that getmembers returns a list of 2-tuples. The first item is the name of the member, the second item is the value.
You can als...
Convert Python dict into a dataframe
...
@ChrisNielsen You are probably using python3. You should try: df = pd.DataFrame(list(data.items()), columns=['Date', 'DateValue'])
– Viktor Kerkez
Nov 22 '16 at 11:11
...