methods

问题 I've been searching around but I just can't seem to find what I'm looking for, so I'll give it a go here. Situation: I have the class MainWindow and MainWindowData. In MainWindowData are only public properties defined with the attribute UpdateGUI. public class UpdateGUI : Attribute { } public class MainWindowData { [UpdateGUI] public string TESTVAR { get; set; } } Now I want to add a method to each property's setter method in MainWindowData. More specific: void OnPropertyChanged(String

问题 I'm get kind of getting mixed messages about this so I'm hoping someone can clear this up for me. Should I be using Shared methods/functions in the following situation: I have a generic class named "Person". This class represents a person in the database. I have a manager class named "PersonManager". This class contains methods which adds, updates, deletes individual Person objects. A method also exists to lookup Persons from the database. Should these methods in the manager class be declared

问题 I've only been working with C++ for 2~3 months and recently I found out about the identifier, final , that comes after a virtual function. To this day, I believed that omission of virtual will stop the propagation of virtualness but I was wrong. It implicitly propagates. My question is this. Why allow implicit propagation? Why can't an existence of virtual make a function virtual and absense of virtual make a function not virtual? Is is better in some circumstance? or Was it, back in the day

问题 For an application I am writing, I want to have extreme extensibility and extension methods seem to give me what I want, plus the ability to call them without an instance, which I need too. I remember reading that static methods are faster than instance methods but don't get the advantages of GC. Is this correct? It's highly unlikely I will change my design unless I find a superior alternative by design not speed. But still for extra information I wanna know the differences in speed, GC, etc.

问题 I have been searching stack exchange and around the web for how to do this, but I cannot understand how to mock behaviors for methods. I am trying to mock openpyxl behaviors and behaviors for my custom class. Here is my attempt: import unittest from unittest.mock import MagicMock import openpyxl from MyPythonFile import MyClass class TestMyClass(unittest.TestCase): def test_myclass(self): myclass = MyClass() wb = openpyxl.workbook() ws = openpyxl.worksheet() wbPath = 'wbPath' openpyxl.load

问题 I've researched and researched and still don't understand why shouldStartLoadWithRequest is never called. My page loads fine and some of the UIWebview delegate protocol methods are called. Please find relevant snippets from my code below: Synthesize my webview in my .m (defined in a header file): @implementation PortViewController @synthesize WebView = myWebView; I load my webview successfully: myURLString = [NSString stringWithFormat:@"https://%@", defaultWebsite]; myURL = [NSURL

问题 Can someone please disambiguate class attributes and methods for C++? I was under the impression that attribute means any member variable, and method means any member function. Thanks 回答1: Define "correct". Referring to data members and member functions as "attributes/properties" and "methods", respectively, is common practice - it's the general OO wording. ("attributes" are used in C++ for something else, though, so this may very well be a source of confusion.) The C++ standard, however,

问题 I have an Interface and two Classes wich are implementing the Interface. public interface MyInterface { public void firstMethod(); public int secondMethod(); } public class MyClass1 implements MyInterface { public void firstMethod() {} } public class MyClass2 implements MyInterface { public void firstMethod() {} public int secondMethod() {} } The class MyClass1 is telling me to Add unimplemented methods , because the secondMethod is not implemented, OK I will do that. But the problem is that

问题 I count 9 HTTP request methods: GET HEAD POST PUT DELETE CONNECT OPTIONS TRACE PATCH The above from: https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods Is that it? will this ever change? 回答1: Registry The HTTP 1.1 spec defines an Hypertext Transfer Protocol (HTTP) Method Registry. As of 2017-01, shows 39 entries: ACL BASELINE-CONTROL BIND CHECKIN CHECKOUT CONNECT COPY DELETE GET HEAD LABEL LINK LOCK MERGE MKACTIVITY MKCALENDAR MKCOL MKREDIRECTREF MKWORKSPACE MOVE OPTIONS ORDERPATCH

问题 I have a Moose class that is intended to be subclassed, and every subclass has to implement an "execute" method. However, I would like to put apply a method modifier to the execute method in my class, so that it applies to the execute method in all subclasses. But method modifiers are not preserved when a method is overriden. Is there any way to ensure that all subclasses of my class will have my method modifier applied to their execute methods? Example: In a superclass, I have this: before