大约有 40,000 项符合查询结果(耗时:0.0411秒) [XML]

https://stackoverflow.com/ques... 

Android OpenGL ES and 2D

...ur canvas with the proper GL flags for 2D (sprite) rendering. You should really take a look at SpriteMethodTest by the same author of replica island: http://code.google.com/p/apps-for-android/source/browse/trunk/SpriteMethodTest See this question where I posted my own code: Using OpenGL to replace ...
https://stackoverflow.com/ques... 

Is the practice of returning a C++ reference variable evil?

... In general, returning a reference is perfectly normal and happens all the time. If you mean: int& getInt() { int i; return i; // DON'T DO THIS. } That is all sorts of evil. The stack-allocated i will go away and you are referring to nothing. This is also evil: int& get...
https://stackoverflow.com/ques... 

Remove ActiveRecord in Rails 3

...it and get a bit of a head-start. The app uses MongoDB and MongoMapper for all of its models and therefore has no need for ActiveRecord. In the previous version, I am unloading activerecord in the following way: ...
https://stackoverflow.com/ques... 

GDB missing in OS X v10.9 (Mavericks)

... I installed via brew, and keep getting "_____: not in executable format: File format not recognized" when I try to load an executable. Can anyone comment on how they got a successful install? – Parker ...
https://stackoverflow.com/ques... 

How to use pull to refresh in Swift?

...lf.tableView.reloadData() and self.refreshControl?.endRefreshing() in the callback? – Qian Chen Dec 6 '15 at 19:58 Exa...
https://stackoverflow.com/ques... 

Have a reloadData for a UITableView animate when changing

...the modes I have a different number of sections and cells per section. Ideally, it would do some cool animation when the table grows or shrinks. ...
https://stackoverflow.com/ques... 

Numpy: find first index of value fast

...ments it. If you use anaconda python distribution it should already be installed. The code will be compiled so it will be fast. @jit(nopython=True) def find_first(item, vec): """return the index of the first occurence of item in vec""" for i in xrange(len(vec)): if item == vec[i]: ...
https://stackoverflow.com/ques... 

How to deep copy a list?

... don't make a deep copy using list() (Both list(...) and testList[:] are shallow copies). You use copy.deepcopy(...) for deep copying a list. deepcopy(x, memo=None, _nil=[]) Deep copy operation on arbitrary Python objects. See the following snippet - >>> a = [[1, 2, 3], [4, 5, 6]]...
https://stackoverflow.com/ques... 

How can I scale an image in a CSS sprite

...http://css-tricks.com/css-sprites/ , it talks about how can I crop off a smaller image from 1 bigger image. Can you please tell me if it is possible/how I can crop off a smaller image and then scale the cropped off region before I lay it out? ...
https://stackoverflow.com/ques... 

Check if a value is within a range of numbers

...u're asking a question about numeric comparisons, so regular expressions really have nothing to do with the issue. You don't need "multiple if" statements to do it, either: if (x >= 0.001 && x <= 0.009) { // something } You could write yourself a "between()" function: function b...