nested

问题 This question refers to this prior one posted here on SO by Christian Metzler. My only very limited experience regarding annotion consists of using CustomAttribute introduced in recent Delphi versions. My question: Are there any other languages implementing nested attributes features (for annotation purpose). 回答1: In the Java programming language it is possible to declare nested annotation types. Example references: http://javahowto.blogspot.com/2006/07/java-annotations-with-no-target.html

问题 Input: I have Excel file containing 3 columns and format of excel file is like as follow: A C D A C E A F G B H J B H K A F I B L M B L N A F O I wish to make dictionary from the above input in below format: Output: dictionary= {'A':{'C':['D','E'],'F':['G','I','O']},'B':{'H':['J','K'],'L':['M','N']}} Logic: For each distinct column-1 value, need to make nested dictionary & in that nested part, for each distinct column-2 value, need to make list of correspondingly column-3 values. 回答1: You can

问题 i'm very newbie with JSON so i'm having problems with nested JSON's . I was searching two days without any luck, i saw a lot of examples of how to deserialize a nested JSON but my efforts failed so at last chance i'm here. The thing i want to know is how i deserialize nested class with MiniJson , the JSONString is a facebook one, but i want to know the method for do it. Here is an example of the JSONString i'm trying to deserialize. {"data": [{"user":{"name":"xxxxxxxxx1","id":"xxxxxxxxxx2"},

问题 I am playing around codefight, but I am really stuck to the following efficient issue. Problem : Given integers n, l and r, find the number of ways to represent n as a sum of two integers A and B such that l ≤ A ≤ B ≤ r. Example : For n = 6, l = 2 and r = 4, the output should be countSumOfTwoRepresentations2(n, l, r) = 2. There are just two ways to write 6 as A + B, where 2 ≤ A ≤ B ≤ 4: 6 = 2 + 4 and 6 = 3 + 3. Here is my code. It passes all the unit tests but it failing in the hidden ones.

问题 This is my document Post{ "_id" : 1, "Code" : CSUUID("ba22a2a3-e6b5-4ce6-a3ad-20e5196cca46"), "Zip" : 123456, "Text" : "Hello", "Tags" : [{ "_id" : 1, "Tag" : "Tag8" }, { "_id" : 2, "Tag" : "Tag9" }, { "_id" : 3, "Tag" : "Tag10" }] } I need to delete one of 'Tags' by id in c#. for example: delete from post where tag.id = 2 回答1: MongoDB.Bson version : 2.0.1.27 MongoDB.Driver version :2.2.0.262 MongoDB.Driver.Code version :2.2.0.262 const int id = 1; var pull = Builders<Post>.Update.PullFilter

问题 I'm looking for some help with a LINQ query to filter on a property/enum of a custom object which is in a nested List, and want to maintain the parent object in return list. For example/clarity/sample code, I have a parent object, which has in it a List based on class and enum below: public class Stage { public String Name { get; set;} public List<Evaluation> MyEvaluations { get; set;} } public class Evaluation { public float Result { get; set; } public enumResultType ResultType { get; set; }

问题 I want a regex that can parse ignoring the nested matches I mean on this for example: /*asdasdasd /* asdasdsa */ qweqweqwe */ to match the first "/*" with the last "*/" and not stopping to the first "*/" Thanks... 回答1: RegEx expressions will naturally be greedy, so you can just use: \/\*.*\*\/ If you wanted it to do what you're afraid of and make the RegEx be lazy and stop after the first match you'd have to add an ? like: \/\*.*?\*\/ 回答2: Regular expressions can't count nested items by

问题 Is there a way to use nested attributes in Delphi? At the moment I'm using Delphi XE. For example: TCompoundAttribute = class (TCustomAttribute) public constructor Create (A1, A2 : TCustomAttribute) end; And the usage would be [ TCompoundAttribute (TSomeAttribute ('foo'), TOtherAttribute ('bar')) ] At the moment this leads to an internal error. This would be a nice feature to create some boolean expressions on attributes. 回答1: I think you mean default attributes of create method. Something

问题 I have numerical data in a vector< vector < double> > and need to add scalar values to them as follows: vector <vector<double> > data ( M, vector<double>(N) ); vector <double>scalars(N); data[0][0] += scalars[0]; data[0][1] += scalars[1]; ... data[0][N-1] += scalars[N-1]; data[1][0] += scalars[0]; data[1][1] += scalars[1]; ... data[1][N-1] += scalars[N-1]; ... data[M-1][N-1] += scalars[N-1]; Of course this is possible with two for loops. I was wondering if it can be done as simply with

问题 I have a list within a dictionary within a dictionary: {FirmA:{ProductA:[Color1,Color2,Color3]}} I want to build a list of keys from the First Firm dictionary level. Then, I need to access the second level Product dictionary based on a Firm Key. Finally, I will need to access the Colors list based on the Product key from Dictionary level 2 (Products). I tried to get the level 1 keys for Firms: [i for i in dict.keys()] Returns ValueError: Too many values to unpack This is a fairly large data