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电子电路基础
最新推荐文章于 2022-02-23 02:00:58 发布
原创 最新推荐文章于 2022-02-23 02:00:58 发布 · 535 阅读 · 0 ·
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本文介绍了一个关于电子电路的基础知识网站链接，该网站提供了详细的电路理论和技术说明。
【开源电机驱动】H桥基础知识
BadBoyHolly的博客
07-17 6587
H-Bridges – the Basics H-Bridges-基础知识 Introduction 引言 You can learn how to build h-bridges from many on- and off-line resources. After all these circuits are not terribly complicated. Some of those resources are good, some are not so much. However wh
Continuous control with deep reinforcement learning (DDPG强化学习) 论文翻译
weixin_43590290的博客
08-28 5168
分布式数据融合架构信息共享策略评估 Continuous control with deep reinforcement learning Timothy P. Lillicrap, Jonathan J. Hunt, Alexander Pritzel, Nicolas Heess, Tom Erez,Yuval Tassa, David Silver & Daan Wierstra...
the hardest lessons for startups to learn
tianyu的专栏 - Linux site:blog.youkuaiyun.com/wishfly
05-30 2250
April 2006(This essay is derived from a talk at the 2006 Startup School.)The startups weve funded so far are pretty quick, but they seem quicker to learn some lessons than others. I think its beca
CHAPTER 1 Using neural nets to recognize handwritten digits
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This is bill的专属博客
10-13 1万+
The human visual system is one of the wonders of the world. Consider the following sequence of handwritten digits:Most people effortlessly recognize those digits as 504192. That ease is deceptive. In
The Subtle Art of Not Giving a F*ck: A Counterintuitive Approach to Living a Good Life by Mark Manso
CodingIsFun
10-31 4726
By not giving a fuck that you feel bad, you short-circuit the Feedback Loop from Hell; you say to yourself, “I feel like shit, but who gives a fuck?” And then, as if sprinkled by magic fuck-giving fai...
An introduction to Solid State Relays
huimultd的博客
12-27 721
An introduction to Solid State Relays INTRODUCTION: Because of its excellent performance, solid state relay has become an essential industrial control device in many fields. This is an introduction to solid state relays, through this article you will lea
How Improved Short-Circuit Local Reads Bring Better Performance and Security to Hadoop
Mac Track
09-30 1512
One of the key principles behind Apache Hadoop is the idea that moving computation is cheaper than moving data — we prefer to move the computation to the data whenever possible, rather than the other
（转）The Road to TensorFlow
a1424262219的博客
09-25 647
Stephen Smith's Blog All things Sage 300… The Road to TensorFlow – Part 7: Finally SomeCode leave a comment » Introduction Well after a long journey throughLinux,Python,Pytho...
【转载】Why Learning to Code is So Damn Hard By Erik Trautman
alnxtmp169007749的博客
07-11 811
原文网址：https://www.thinkful.com/blog/why-learning-to-code-is-so-damn-hard/ 在罗老师的《算法竞赛 入门到进阶》总看到了这篇文章，觉得很有意思，所以搬运到我自己的博客里，大家可以看一下。 正文： What every beginner absolutely needs to know about the ...
How to become a successful grad student
四维空间
04-13 5028
Brief description A computer science graduate school survival guide, intended for prospective or novice graduate students. This guide describes what I wish I had known at the start of graduate school
Hacker's guide to Neural Networks
weixin_30408739的博客
01-26 560
Hacker's guide to Neural Networks Andrej Karpathy blog About Hacker's guide to Neural Networks Hacker's guide to Neural Networks Hi there, I'm a CS PhD student at Stanford. ...
The Virtual and the Real
weixin_42786150的博客
02-23 1936
virtual reality
孕龙逻辑分析仪 ZeroPlus Logic Analyzer
weixin_34152820的博客
07-15 1919
Voltage Translation for Analog to Digital Interface ADC http://openschemes.com/2010/03/23/zeroplus-logic-cube-review-and-teardown/         LAP 16032 has 4.5MBIT S...
arduino L293D电机扩展模块入门 Reference
spaceship20008的专栏
03-09 4107
注意，是这个模块， 号称能带动2个步进电机，2个舵机，4个直流电机 驱动四路直流电机和两路舵机 驱动两路直流电机和一路步进电机和两路舵机 驱动两路步进电机和两路舵机 其主要详细数据如下： Arduino SDK的0。22版本可支持的库下载地址， http://www.kuaipan.cn/file/id_6055547405075404.htm
arduino 大气气压模块 BOSCH BMP085
spaceship20008的专栏
03-09 1569
运行的是arduino 1.0.3，经过我修改代码，可以运行在Arduino SDK 1.0.3中了。 Enjoy http://www.kuaipan.cn/file/id_6055547405075407.htm And here we could find the best place to follow the Air Pressure Tutorial for ardu
using Bash script to control LED with WiringPi on Raspberry Pi
spaceship20008的专栏
01-05 1095
Before programming in bash You need is to install WiringPi first. Click here for information of installing WiringPi on Raspberry Pi. SInce bash is already installed on most Linux destros. we ju
one good project :D
spaceship20008的专栏
01-05 504
Humidity and Temperature Logging From Your Pi to the Cloud! http://learn.adafruit.com/dht-humidity-sensing-on-raspberry-pi-with-gdocs-logging
国家自然科学基金项目数据分析与可视化工具_国家自然科学基金项目数据科研项目分析资助趋势统计学科领域分布项目负责人信息经费使用情况成果产出评估国际合作研究青年科学基金.zip
最新发布
12-01
国家自然科学基金项目数据分析与可视化工具_国家自然科学基金项目数据科研项目分析资助趋势统计学科领域分布项目负责人信息经费使用情况成果产出评估国际合作研究青年科学基金.zip
aetributeError:'str' object has no attribute 'place_forget!
08-20
在 Python 的 Tkinter 应用中，`AttributeError: 'str' object has no attribute 'place_forget'` 这一错误通常表明你尝试在一个字符串对象上调用 `place_forget()` 方法，而该方法仅适用于 Tkinter 的控件对象（如 `Label`、`Button`、`Treeview` 等）。 出现此错误的原因可能是变量名被错误地覆盖，或者原本应该引用控件对象的变量被赋值为字符串类型。例如： ```python tree_view = "This is a string" tree_view.place_forget() # 此处会抛出 AttributeError ``` 为了避免该错误，应确保调用 `place_forget()` 的对象是 Tkinter 控件实例，而非字符串或其他类型对象。正确的使用方式如下： ```python from tkinter import * from tkinter.ttk import Treeview root = Tk() tree_view = Treeview(root) tree_view.pack() def hide_treeview(): tree_view.place_forget() Button(root, text="隐藏 TreeView", command=hide_treeview).pack() root.mainloop() ``` 此外，如果控件是通过 `pack()` 或 `grid()` 布局的，则应使用对应的 `pack_forget()` 或 `grid_forget()` 方法来隐藏控件[^1]。 ### 控制控件可见性的最佳实践 - 在隐藏控件前，确保变量引用的是控件对象而不是其他类型。 - 使用 `winfo_ismapped()` 方法判断控件是否正在显示，从而决定是否需要隐藏或显示控件。 - 若使用容器控件（如 `Frame`）包裹目标控件，可通过控制容器的可见性来统一管理多个控件的显示状态。 示例：动态切换 TreeView 的显示状态 ```python def toggle_treeview(): if tree_view.winfo_ismapped(): tree_view.pack_forget() else: tree_view.pack(fill=BOTH, expand=True) ``` ###
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