array

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: class Parent { public function __construct($method) { call_user_func(array($this, $method), 1); } } class Child extends Parent { public function __construct($method) { parent::__construct($method); } protected function call_me_on_construct($par) { echo $par; } } Creating instance of $child = new Child("call_me_on_construct"); I want call_me_on_construct method to be called. The problem is Parent's constructor know nothing about $this . What is better way to do it? Thank you. 回答1: It knows about $this . The only error in your code is that you

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Hey I'm currently studying for a java final and I am befuddled by a simple equals method. The question given is "Given the following array declarations, what does the following print" and I thought it would be true, false, true however after copy and pasting the code it reveals the answer is false, false, true. I understand that the == only works when they are the same instance of the object but I do not understand why the first on is false. I tried finding the method in the array api but could not find one with the same arguments. Forgive

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Hallo Stack Overflow community, Basically: I have prepared .tif files that are 64x64xn in size (n up until 1000). The image is only a single file that contains all of this slices. I would like to load the image into a (multidimensional) numpy array. I have tried: from PIL import Image as pilimage file_path=(D:\luca\test\test.tif) print("The selected stack is a .tif") dataset = pilimage(file_path) tiffarray = np.array(dataset) expim = tiffarray.astype(np.double); print(expim.shape) and other things (like tifffile). I only seem to be able to

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Unless I am mistaken, it should be possible to create a std:array in these ways: std::array strings = { "a", "b" }; std::array strings({ "a", "b" }); And yet, using GCC 4.6.1 I am unable to get any of these to work. The compiler simply says: expected primary-expression before ',' token and yet initialization lists work just fine with std::vector. So which is it? Am I mistaken to think std::array should accept initialization lists, or has the GNU Standard C++ Library team goofed? 回答1: std::array is funny. It is defined basically like this:

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: In my html page i am sending this post to my sails server but I cannot get to the data in my controller as the req.param() function does not return any meaningful answer. Here is the web page code $.post("http://myserver.local/calendar/batch", {"batch":[ { "start_date" : "2014-06-27T09:00:00Z", "title" : "abc", "attendees" : [ "Fred Bloggs", "Jimmy Jones", "The Queen" ], "event_id" : "123", "location" : "Horsham, United Kingdom", "end_date" : "2014-06-27T10:30:00Z" }, { "start_date" : "2014-06-27T09:00:00Z", "title" : "another", "attendees"

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Since Ruby does type conversion, how do I get the index correctly? I would like this to return 1 [1,2.0,2,3].index(2.0) #=> 1 I would like this to return 2 [1,2.0,2,3].index(2) #=> 1 回答1: Using a block together with eql? is one way: [1,2.0,2,3].index {|e| e.eql? 2.0} #=> 1 [1,2.0,2,3].index {|e| e.eql? 2} #=> 2 Unlike == , eql? returns true only if the receiver and the argument have the same type and equal values. So 2 == 2.0 returns true while 2.eql? 2.0 returns false . 回答2: Array#index and Equality You aren't getting the results you expect

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Passing arrays of structures/records from ADA to C routines is one thing. In this case the memory management is done in ADA. But when interfacing with third party libraries there is often the problem that Memory management is done in the C part. For example: For the C-structure: typedef struct _MYREC { int n; char *str; } MYREC; the following C-routine allocates Memory and returns a pointer to a MYREC-array with n elements: MYREC * allocMyrec(int n); Problem is that the returned Pointer does not contain size-information which is required for

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I have an array of arrays that I want to pass into a DLL. I am running into the error "There is no marshaling support for nested arrays." I can pass a single array in fine but if I stack them up it fails. I need/want a "safe" way of passing in the array of arrays. private static extern int PrintStuff ( string [][] someStringsInGroups , int numberOfGroups , int [] lengthSetsInGroups ); EDIT: I am also willing, with enough discouragement and anguish, to accept a solution involving marshaling. 回答1: You could convert the double array

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am using sklearn to apply svm on my own set of images. The images are put in a data frame. I pass to the fit function a numpy array that has 2D lists, these 2D lists represents images and the second input I pass to the function is the list of targets (The targets are numbers). I always get this error "ValueError: setting an array element with a sequence". trainingImages = images.ix[images.partID <=9] trainingTargets = images.clustNo.ix[images.partID<=9] trainingImages.reset_index(inplace=True,drop=True) trainingTargets.reset_index(inplace

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: While I am playing with Swift Array I came across a problem. Here below is my experiment: var iArray = [] //Here if I see the type details in quick help it is of NSArray type. var myArray = [Int]() //Here if I see the type details in quick help it is of Swift Array<Int> type. Now if I check like below if iArray is NSArray { //it gives error saying it is always true, which is correct. println("Confused") } if iArray is Array<String> { //Here it is true and printing the message and same is also true if i check for Array<Int> println("More