The purpose of the class and extension is to extend a class.Category (category) in the Objective-cI. Definition and role of class purposeCategory is also called classification, the English category, in the absence of the original class. m file based
This article mainly shares with you a piece of PHP code for creating a graphic verification code, which is very practical and can be used at will:
Myvcode. class. php: class that encapsulates the verification code
/** File: myvcode. class. php*
Sub-classes inherit parent class private ask for details
test();?>In this code, the parent class has a private method. isn't the PHP rule that the subclass cannot inherit the private method of the parent class? but I have written a method of the
Previously, we mentioned that Ruby has no functions, but only methods. There are actually more than one method. In this section, we will introduce access control (access controls ).
Think about what happens when we define a method in the
PHP in the use of GD implementation of the bar chart, PHPGD implementation of the bar chart
PHP in the use of GD implementation of the histogram, wrote a histogram of their own class, on the code.
1
Php2 Classchart{3 Private
PHP Object-oriented Programming (ii), PHP object-oriented programming
Now let's look at an object-oriented encapsulation problem
Encapsulation: In my understanding can be understood as a U-disk we use the interface of the U-disk and the computer
What is polymorphic1object-oriented three main features: encapsulation, inheritance, polymorphism. From a certain point of view, encapsulation and inheritance are almost always prepared for polymorphism. This is our last concept, but also the most
----------retrofit based on the last written jquery plugin http://www.cnblogs.com/GerryOfZhong/p/5533773.htmlbackground : jquery plugins rely on the jquery library, although jquery is widely used, but for mobile development or other bandwidth needs
First, reflection mechanism application scenarioIt is important to know where to use it, and anything comes from him, knowing the scene to know why it was invented.
It is generally used when developing tools and frameworks related to Java
From: http://tutorials.jenkov.com/java-reflection/private-fields-and-methods.htmlAlthough we generally think that it is possible to access private fields and private methods of other classes through the reflection mechanism of Java, it is not so
Java in the final, finally, finalize the difference and usage, troubled a lot of learners, the following we have some discussion on this issue, I hope that everyone's learning has helped.Method/Step
1Simple difference:Final is used to
In the absence of synchronization, the compiler, the processor, and the runtime can make some unexpected adjustments to the order in which the operations are executed. In a multithreaded program that lacks sufficient synchronization, the order in
Difference and usage of final, finally, and finalize in Java, finalfinalize
1. Simple differences:Final is used to declare attributes. Methods and classes indicate that attributes cannot be exchanged, methods cannot be overwritten, and classes
Python study NOTE 2: Class Definition and inheritance# Class definitionFormat:Class Name (parent class ):_ Init (self, parameter)Member Method
Member variables
# Basic object of all classes
# Start With _ for private methods and variables
For
Ruby metaprogramming and ruby Programming
An object model
Kernel Module
Kernel. private_instance_methods.grep (/^ pr /)
Private method
1. If a method receiver is not yourself, you must specify a receiver.
2. A private method can only
Now, JavaScript is great, and for Web developers, JavaScript is a must-have language, but with the popularity and use of frameworks such as jquery, many people lack in-depth understanding of native JavaScript and are accustomed to functional editing
Python-Object-Oriented Programming and python Object-Oriented Programming
Object-Oriented Programming is simply based onClassAndObjectAll the code is implemented by class and object programming is object-oriented programming!
Three main features of
one, URL path access and module controller URL Module (controller) Action (METHOD) That is, the relationship between the above three URLs: http://127.0.0.1/projectName/index.php/ module / action1, thinkphp provisions, two points• first, all main
/* PHP object-oriented programming ** PHP5 ** Array and object: both belong to the PHP compound type (one variable can store multiple units) ** Objects are more powerful than arrays. They not only store multiple data, but also store functions in
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