oop

问题 The question is how to get an object from List having its field value I have got list called f_objects filled with objects. private List<F_object> f_objects; i've got also a string with some value : string name = "something"; F_object got a method returning its field called name: public string GetName() { return this.name; } Is there a built in method for compare objects in list vs this field value ? Or should i make a loop and compare like this: foreach(F_object ob in f_objects) { if String

问题 Tried and searched this but never seemed to find it here in SO tried using unset($this->property_name) but it still shows up when I use a print_r($object_name) , is it impossible to remove a private property of an object? here's a sample code class my_obj { private $a, $b, $c, $d; public function __construct($data = null) { if($data) { foreach($data as $key) { if(property_exists($this,$key)) { $this->$key = $value; } } } } implementation: $test = new my_obj(array('a'=>a, 'c'=>'c')); echo '

问题 Tried and searched this but never seemed to find it here in SO tried using unset($this->property_name) but it still shows up when I use a print_r($object_name) , is it impossible to remove a private property of an object? here's a sample code class my_obj { private $a, $b, $c, $d; public function __construct($data = null) { if($data) { foreach($data as $key) { if(property_exists($this,$key)) { $this->$key = $value; } } } } implementation: $test = new my_obj(array('a'=>a, 'c'=>'c')); echo '

问题 Tried and searched this but never seemed to find it here in SO tried using unset($this->property_name) but it still shows up when I use a print_r($object_name) , is it impossible to remove a private property of an object? here's a sample code class my_obj { private $a, $b, $c, $d; public function __construct($data = null) { if($data) { foreach($data as $key) { if(property_exists($this,$key)) { $this->$key = $value; } } } } implementation: $test = new my_obj(array('a'=>a, 'c'=>'c')); echo '

问题 Right now I am learning Python and struggling with a few concepts of OOP, one of that being how difficult it is (to me) to dynamically initialize class instances and assign them to a dynamically generated variable name and why I am reading that I shouldn't do that in the first place. In most threads with a similar direction, the answer seems to be that it is un-Pythonic to do that. For example generating variable names on fly in python Could someone please elaborate? Take the typical OOP

问题 Right now I am learning Python and struggling with a few concepts of OOP, one of that being how difficult it is (to me) to dynamically initialize class instances and assign them to a dynamically generated variable name and why I am reading that I shouldn't do that in the first place. In most threads with a similar direction, the answer seems to be that it is un-Pythonic to do that. For example generating variable names on fly in python Could someone please elaborate? Take the typical OOP

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 8 years ago . What is the best directory structures of an object oriented PHP project? taking security into consideration among the other factors. I

问题 Javascript lacks a class construct, however you can still achieve inheritance many different ways. You can mimic classes by utilizing prototypes to create constructor functions and thus implementing inheritance via delegation. The most common way to do this is with the new keyword, but you can also implement object.create() . Alternatively, you can take a concatenative approach and copy behavior that you want your object to inherit directly into the object itself, rather than by pointing its

问题 This question already has answers here : mysqli_query() expects parameter 1 to be mysqli, object given (3 answers) Closed 16 days ago . I'm learning OOP, so I've probably done something stupid. I had code working with mysql, but read that mysqli is better, especially since I'm wanting to get an array of objects from the database. I've updated my code to try and work with mysqli now, and have solved some problems, but now I'm stuck. From my database class file: class Database { function _

问题 What are the benefits (or drawbacks) of returning a reference to 'this' object in a method that modifies itself? When should returning a 'this' be used as apposed to void? When looking at an answer on code review stack exchange, I noticed that the answer used a 'return this' in a self operating method. Simplified class from original: class Item { public Item(string name) { Name = name; } public string Name { get; private set; } public Item AddComponent(ItemComponent component) { _components