class

Extension methods versus inheritance

由 杀马特。学长 韩版系。学妹 提交于 2020-01-09 12:31:50
问题 Are there rules of thumb that help determine which to use in what case? Should I prefer one over the other most times? Thanks! 回答1: Extension methods are useful, but they are harder to discover through the IDE than regular methods, since they are not attached to the original class and there are no clues as to where the code for them might reside. There are some best practice suggestions as to where to put them and how to name them, but these are only guidelines and there is no guarantee that

Extension methods versus inheritance

由 ╄→尐↘猪︶ㄣ 提交于 2020-01-09 12:31:36
问题 Are there rules of thumb that help determine which to use in what case? Should I prefer one over the other most times? Thanks! 回答1: Extension methods are useful, but they are harder to discover through the IDE than regular methods, since they are not attached to the original class and there are no clues as to where the code for them might reside. There are some best practice suggestions as to where to put them and how to name them, but these are only guidelines and there is no guarantee that

How to get my class to appear in Aptana's autocomplete?

由 删除回忆录丶 提交于 2020-01-09 11:39:13
问题 I'm searching for a possibility to add my own classes to the Aptana autocompletion for my project. At the moment I have one project file with a directory "class" with class files in it, which will be inserted with "require_once" in my php project. Can you help me? 回答1: File->New->PHP Project-> Project Explorer ( new project ) right click on [YOUR PROJECT] in "Project Explorer" -> Properties You will see "Properties for [YOUR PROJECT]" window Project Natures -> PHP (checkbox) and click "Make

How to get my class to appear in Aptana's autocomplete?

由 蹲街弑〆低调 提交于 2020-01-09 11:37:30
问题 I'm searching for a possibility to add my own classes to the Aptana autocompletion for my project. At the moment I have one project file with a directory "class" with class files in it, which will be inserted with "require_once" in my php project. Can you help me? 回答1: File->New->PHP Project-> Project Explorer ( new project ) right click on [YOUR PROJECT] in "Project Explorer" -> Properties You will see "Properties for [YOUR PROJECT]" window Project Natures -> PHP (checkbox) and click "Make

Calling one method from another within same class in Python

由 喜夏-厌秋 提交于 2020-01-09 09:22:48
问题 I am very new to python. I was trying to pass value from one method to another within the class. I searched about the issue but i could not get proper solution. Because in my code, "if" is calling class's method "on_any_event" that in return should call my another method "dropbox_fn", which make use of the value from "on_any_event". Will it work, if the "dropbox_fn" method is outside the class? I will illustrate with code. class MyHandler(FileSystemEventHandler): def on_any_event(self, event)

Forward Declaration vs Include

由 陌路散爱 提交于 2020-01-09 09:04:55
问题 Consider the following two scenarios (Edited just to complete the whole question and make it clearer) Case 1: (doesnt compile as rightly mentioned below) //B.h #ifndef B_H #define B_H #include "B.h" class A; class B { A obj; public: void printA_thruB(); }; #endif //B.cpp #include "B.h" #include <iostream> void B::printA_thruB(){ obj.printA(); } //A.h; #ifndef A_H #define A_H #include "A.h" class A { int a; public: A(); void printA(); }; #endif //A.cpp #include "A.h" #include <iostream> A::A()

Forward Declaration vs Include

由 拟墨画扇 提交于 2020-01-09 09:03:23
问题 Consider the following two scenarios (Edited just to complete the whole question and make it clearer) Case 1: (doesnt compile as rightly mentioned below) //B.h #ifndef B_H #define B_H #include "B.h" class A; class B { A obj; public: void printA_thruB(); }; #endif //B.cpp #include "B.h" #include <iostream> void B::printA_thruB(){ obj.printA(); } //A.h; #ifndef A_H #define A_H #include "A.h" class A { int a; public: A(); void printA(); }; #endif //A.cpp #include "A.h" #include <iostream> A::A()

Python using methods from other classes

由 醉酒当歌 提交于 2020-01-09 06:19:09
问题 If I have two classes, and one of them has a function that I want to use in my other class, what do I use so that I don't have to rewrite my function? 回答1: There are two options: instanciate an object in your class, then call the desired method on it use @classmethod to turn a function into a class method Example: class A(object): def a1(self): """ This is an instance method. """ print "Hello from an instance of A" @classmethod def a2(cls): """ This a classmethod. """ print "Hello from class

bootstrap响应式布局

由 早过忘川 提交于 2020-01-09 03:02:52
一、导航栏 　　1， <nav class="navbar navbar-default navbar-fixed-top" role="navigation"> <div class="container"> <div class="navbar-header"> <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#navbar-collapse"> <span class="sr-only">切换导航</span> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button> <a href="#" class="navbar-brand" style="padding: 0;"> <img src="img/1.jpg" alt="logo" style="height: 50px"> </a> </div> <div class="collapse navbar-collapse" id="navbar-collapse"> <ul class="nav navbar-nav navbar-right"> <li class

Accessing Class Properties with Spaces

由 二次信任 提交于 2020-01-09 02:14:29
问题 stdClass Object ([Sector] => Manufacturing [Date Found] => 2010-05-03 08:15:19) So I can access [Sector] by using $object->Sector but how can I access [Date Found] ? 回答1: You can do it this way: $object->{'Date Found'} 回答2: have you tried $property = 'Date Found'; $object->{$property}; Or simply $object->{'Date Found'}; 回答3: try $var="Date Found"; $this->$var But I doubt that much you can have spaces in class properties names in php 回答4: Replace the spaces with underscores in the property
订阅 class