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Arduino 101 实验09 - PWM 电机调速 · App Inventor 2 中文网
...驱动模块接外部电池盒能彻底解决。
固件：.ino 里把 PWM_MOTOR 设为 ENABLED，其余 DISABLED。
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How to disable Django's CSRF validation?
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If you just need some views not to use CSRF, you can use @csrf_exempt:
from django.views.decorators.csrf import csrf_exempt
@csrf_exempt
def my_view(request):
return HttpResponse('Hello world')
You can find more examples and other scenarios in the Django documentation:
https:/...
Converting SVG to PNG using C# [closed]
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You can call the command-line version of inkscape to do this:
http://harriyott.com/2008/05/converting-svg-images-to-png-in-c.aspx
Also there is a C# SVG rendering engine, primarily designed to allow SVG files to be used on the web o...
Rails: How does the respond_to block work?
...html
The Responder does NOT contain a method for .html or .json, but we call these methods anyways! This part threw me for a loop.
Ruby has a feature called method_missing. If you call a method that doesn't exist (like json or html), Ruby calls the method_missing method instead.
http://ruby-meta...
querySelector and querySelectorAll vs getElementsByClassName and getElementById in JavaScript
...w what exactly is the difference between querySelector and querySelectorAll against getElementsByClassName and getElementById ?
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Detect Android phone via Javascript / jQuery
...re reported by Kindle Fire HD devices do not contain the word 'android' at all.
– djbp
Jun 11 '13 at 13:54
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编程基础与事件状态 07：同一屏幕组织专注、统计和设置 · App Inventor 2 中文网
... 实例名
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Width=Fill parent；FontSize=24；TextColor=#183153；Text=专注学习 · 第 7课
垂直布局_专注
垂直布局
Width=Fill parent；Visible=True
垂...
Difference between $.ajax() and $.get() and $.load()
...imes very useful. You have to deal with the returned data yourself with a callback.
$.get() is just a shorthand for $.ajax() but abstracts some of the configurations away, setting reasonable default values for what it hides from you. Returns the data to a callback. It only allows GET-requests so is...
How to write a JSON file in C#?
...ializeObject(_data.ToArray());
//write string to file
System.IO.File.WriteAllText(@"D:\path.txt", json);
Or the slightly more efficient version of the above code (doesn't use a string as a buffer):
//open file stream
using (StreamWriter file = File.CreateText(@"D:\path.txt"))
{
JsonSerializ...
^M at the end of every line in vim
...g to do with editing a file in windows and then in linux. How can I remove all of these automatically?
9 Answers
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