大约有 30,000 项符合查询结果(耗时:0.0624秒) [XML]

https://stackoverflow.com/ques... 

ggplot with 2 y axes on each side and different scales

... 32 @hadley I am sorry, I do not see what is problematic with the given climate diagram. Putting temperature and precipitation in one diagram (...
https://stackoverflow.com/ques... 

How to detect iPhone 5 (widescreen devices)?

...eight of 568. You can imagine a macro, to simplify all of this: #define IS_IPHONE_5 ( fabs( ( double )[ [ UIScreen mainScreen ] bounds ].size.height - ( double )568 ) < DBL_EPSILON ) The use of fabs with the epsilon is here to prevent precision errors, when comparing floating points, as pointe...
https://stackoverflow.com/ques... 

How to update a menu item shown in the ActionBar?

...e-writing the desire text worked without problems: if (mnuTopMenuActionBar_ != null) { MenuItem mnuPageIndex = mnuTopMenuActionBar_ .findItem(R.id.menu_magazin_pageOfPage_text); if (mnuPageIndex != null) { if (getScreenOrientation() == 1) { mnuPageIndex.setTitle...
https://stackoverflow.com/ques... 

Is Java a Compiled or an Interpreted programming language ?

In the past I have used C++ as a programming language. I know that the code written in C++ goes through a compilation process until it becomes object code "machine code". ...
https://stackoverflow.com/ques... 

Ignoring time zones altogether in Rails and PostgreSQL

...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
https://stackoverflow.com/ques... 

Python ValueError: too many values to unpack [duplicate]

...title. – Johnsyweb Mar 31 '14 at 11:32 1 ...
https://stackoverflow.com/ques... 

How to get RGB values from UIColor?

...rView.backgroundColor;//line 2 CGColorRef colorRef = [color CGColor]; int _countComponents = CGColorGetNumberOfComponents(colorRef); if (_countComponents == 4) { const CGFloat *_components = CGColorGetComponents(colorRef); CGFloat red = _components[0]; CGFloat green = _components[1...
https://stackoverflow.com/ques... 

Zip lists in Python

...x. list, string, tuple, dictionary) Output (list) 1st tuple = (element_1 of numbers, element_1 of letters) 2nd tuple = (e_2 numbers, e_2 letters) … n-th tuple = (e_n numbers, e_n letters) List of n tuples: n is the length of the shortest argument (input) len(numbers) =...
https://stackoverflow.com/ques... 

Python Dictionary Comprehension

...a subclass of dict which works somewhat like a defaultdict if you override __missing__: >>> class KeyDict(dict): ... def __missing__(self, key): ... #self[key] = key # Maybe add this also? ... return key ... >>> d = KeyDict() >>> d[1] 1 >>> d[2] ...
https://stackoverflow.com/ques... 

How does the algorithm to color the song list in iTunes 11 work? [closed]

...table... looks like I reinvented the wheel a bit here) convertToYUV[rawRGB_] := Module[{yuv}, yuv = {{0.299, 0.587, 0.114}, {-0.14713, -0.28886, 0.436}, {0.615, -0.51499, -0.10001}}; yuv . rawRGB ] Next, I wrote a function to calculate color distance with the a...