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WPF Timer Like C# Timer
...
330
The usual WPF timer is the DispatcherTimer, which is not a control but used in code. It basicall...
Vim: What's the difference between let and set?
...lar to "ordinary" variables). So, the following are equivalent:
:set tw=40
:let &tw=40
But, for example, assigning 50 to the global variable foo (:let g:foo=50) cannot be achieved with a :set command (because g:foo is a variable and not an option).
Some options are boolean like. When settin...
Why should I use tags vs. release/beta branches for versioning?
...ow is why use tagging at all if I can just create a new branch called 1.1.0 and not have to cloud my mind with a whole new set of git commands?
...
How can you check which options vim was compiled with?
...
100
You can see everything vim was compiled with by executing
:version
To query for an exact fea...
Algorithm to find Largest prime factor of a number
... very fast in general.
The best known method for factoring numbers up to 100 digits long is the Quadratic sieve. As a bonus, part of the algorithm is easily done with parallel processing.
Yet another algorithm I've heard of is Pollard's Rho algorithm. It's not as efficient as the Quadratic Sieve i...
VideoRecorder 拓展：前台预览录制 + 后台无预览录制，支持分辨率、码率设...
...否启用闪光灯，默认 false
CameraOrientation
摄像头方向（0/90/180/270），默认自动检测
Quality
视频画质预设，默认 HIGHEST。支持 HIGHEST、LOWEST、720P、1080P、480P、1920x1080 等
BitRate
视频编码码率（bps），默认 0 自动根据分辨率计...
Binding ConverterParameter
...
305
The ConverterParameter property can not be bound because it is not a dependency property.
Sinc...
How do I get an empty array of any size in python?
...
If by "array" you actually mean a Python list, you can use
a = [0] * 10
or
a = [None] * 10
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In Python, how do I use urllib to see if a website is 404 or 200?
...a=urllib.urlopen('http://www.google.com/asdfsf')
>>> a.getcode()
404
>>> a=urllib.urlopen('http://www.google.com/')
>>> a.getcode()
200
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difference between each.with_index and each_with_index in Ruby?
...index|
puts "#{index}: #{value}"
end
Outputs:
2: foo
3: bar
4: baz
0: foo
1: bar
2: baz
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