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Object-oriented programming (ObjectOrientedProgramming, OOP, object-oriented programming) is a computer programming architecture. One basic principle of OOP is that a computer program is composed of a single unit or object that can act as a subroutine. OOP achieves three goa
) {
Supose This is the class Board.
$x->draw ();
}
$obj =new Circle (3,187);
$obj 2=new Rectangle (4,5);
$board->nicedrawing ($obj); Would call the draw method of Circle.
$board->nicedrawing ($obj 2); Would call the draw method of Rectangle.
?>
Object oriented Programming in PHP
Pure object-oriented people th
real world perspective. Therefore, at the design stage, we have taken into account all the details of program programming implementation, and attempted to meet the real-world software requirements from the starting point of the underlying implementation program.This analysis method is actually not applicable to object-oriented programming languages such as Java,
gain a thorough understanding of object-oriented JavaScript(Original: Zeng, software engineer, ibm,2013 April 17)JavaScript's functional scripting language features and its seemingly arbitrary writing style have led to a long-standing misunderstanding of the language that JavaScript is not an object-
started to hand over the task to several people, telling them what you wanted and letting them do it. Conduct proper supervision and coordination during the process. Congratulations, you are using object-oriented. You no longer care about the details of the task. You are concerned about how to make your work happy, adjust your work status, give encouragement, stress, and encouragement. This is oo. Yes, oo
(4, 5 );$ Board-> niceDrawing ($ obj); // will call the draw method of Circle.$ Board-> niceDrawing ($ obj2); // will call the draw method of Rectangle.?>PHP Object-Oriented ProgrammingIt is true that PHP is not a real object-oriented language. PHP is a hybrid language that you can use in
system, programmers simply see their own code as some labeled C # classes, so they insist that this is Oo; the architect will say that what I designed is in line with all the characteristics of SOA, So I insist that this is so. This is why so's cognition is so vague.
Through these two figures, we can clearly understand that so and OO are both a reflection of the system in software model design. Therefore, there is no problem of who will be eliminate
Object-oriented thinking:
Object-Oriented Analysis and Design of software systems around objects and classes.
Object-Oriented Analysis:
The main task of
enhances the low coupling between the class and the module, and makes the software system easier to maintain and extend.To give a simple example, we often use the method of operating the database, defined in the JDK is the interface, by different database vendors, such as the MySQL driver, Oracle driver, is the implementation of the JDK defined interface standar
-oriented people think that PHP is not a real object-oriented language, this is true. PHP is a hybrid language that you can use with object-oriented or traditional structural programming. For large projects, however, you might or need to use a purely
Object-oriented technologyobject is the core of object-oriented program design, which consists of describing the state's attributes (variables) and the methods (functions) used to implement the object behavior, and completes the combination and unification from the data mode
If you want to sell a cat to a computer expert, never say how intelligent and cute it is, but say it is an object-oriented cat. This is a programmer's concern for programmers.
Object-oriented penetration into various fields of software, since the silver bullet cannot be foun
Object-Oriented systems include:Next we will introduce them one by one:InheritanceInheritance is a Class-level relationship. A new class can inherit from an existing class.As shown in the preceding figure, violin player inherits from the musician class. musician is called the base class, or parent class, super class, and violin player become the inheritance class, or child class, sub class.Inheritance is a
easy to make system maintenance and reuse of components, which can improve the efficiency of software development and adapt to the situation where the requirements change frequently. In addition, the object-oriented approach is widely used in the development of graphical interface-centric programs.Therefore, in the actual so
1.mysql Package ClassDefine parameters for initializing database connections in a constructor "because the parameter passed in when instantiating an object is the only parameter entry for that object"But instead of redundant definitions in the constructor, it is possible to set up the constructor by invoking other methods in the constructor, such as "module separ
Easy to understand
Image "Like two people fight, you have to use the program to describe it, oriented structure, you are each step of the rally are written, such as what the other side out what tricks, you have to write every step, the object-oriented approach, you want to break the fight process into several parts, fight before, fight, and later."
Now for the P
This article mainly introduces nine ways to create objects to help you better learn javascript object-oriented, interested friends can refer to this article to share nine ways to create javascript objects for your reference. The specific content is as follows:
[1] constructing functions using objects[Disadvantage] using the same interface to create many objects will produce a large number of repeated Codes
. For example, student classes, all students can be seen as derived from the same student class, but each student's specific performance behavior is different, this is due to the derivation of different subclasses, each subclass added different attributes. Inheritance has a number of benefits for software development:(1) Software reusability: If an operation is inherited from another class, all the source c
Object-Oriented is a method to understand and abstract the real world, and it is the product of computer programming technology to a certain stage. Today, object-oriented concepts and applications extend beyond programming and software development to a wide range. such as
, command hierarchy design, detailed interaction design, user interface prototype generation, and HIC class definition.. Task Management (TMC) activities include identifying tasks (processes) the services provided by the task, the priority of the task, whether the process is event-driven or clock-driven, and how the task communicates with other processes and the outside world.. Data Management (DMC ). This Part depends on the storage technology, whether it is a file system, a relational
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