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micro:bit 实验08 - 摇一摇与倾斜检测 · App Inventor 2 中文网
...高度 300、背景浅灰
图像精灵
图像精灵_小球
30×30
标签
标签_三轴
文本「X – Y – Z –」
标签
标签_姿态
字号 24，文本「平放」
Microbit_Accelerometer
Mi...
App Inventor 2 颜色代码块 · App Inventor 2 中文网
...接用它变成组件的颜色属性：
when Screen1.Initialize {
标签_标题.TextColor = colorFromHex("#FF5722")
global 主题色 = colorFromHex("#4CAF50")
}
颜色转十六进制
颜色转十六进制 是 十六进制转颜色 的反向块，把颜色转换成 #AAR...
Should I URL-encode POST data?
...ould read the documentation here.
Here's the relevant information:
CURLOPT_POST
TRUE to do a regular HTTP POST.
This POST is the normal application/x-www-form-urlencoded kind, most commonly used by HTML forms.
CURLOPT_POSTFIELDS
The full data to post in a HTTP "POST" operation. To post a file, prep...
Random Gaussian Variables
...uller polar method:
public sealed class GaussianRandom
{
private bool _hasDeviate;
private double _storedDeviate;
private readonly Random _random;
public GaussianRandom(Random random = null)
{
_random = random ?? new Random();
}
/// <summary>
/// Obta...
How to determine SSL cert expiration date from a PEM encoded certificate?
...an I query the cert file for when it will expire? Not a web site, but actually the certificate file itself, assuming I have the csr, key, pem and chain files.
...
Change the Target Framework for all my projects in a Visual Studio Solution
I need to change the target framework for all projects. I have many solutions with hundreds of projects.
10 Answers
...
How to delete (not cut) in Vim?
...
Use the "black hole register", "_ to really delete something: "_d.
Use "_dP to paste something and keep it available for further pasting.
For the second question, you could use <C-o>dw. <C-o> is used to execute a normal command without leaving ...
How can I use map and receive an index as well in Scala?
...t as you would do in Java. But it's not functional style. Think if you actually need it.
– Cristian Vrabie
Mar 12 '12 at 10:52
...
Find out time it took for a python script to complete execution
...test function"
L = []
for i in range(100):
L.append(i)
if __name__=='__main__':
from timeit import Timer
t = Timer("test()", "from __main__ import test")
print t.timeit()
Then to convert to minutes, you can simply divide by 60. If you want the script runtime in an easi...
How do you determine the size of a file in C?
...out since the question didn't specify an OS.
– Drew Hall
Aug 2 '10 at 21:54
1
You could probably ...