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This article mainly explains "how to realize the object-oriented programming method of C++". The content of the explanation in this article is simple and clear, and it is easy to learn and understand. Now please follow the editor's train of thought slowly and deeply. Let's study and learn how to realize the object-oriented programming method of C++.

1. C++ supports data encapsulation. Data encapsulation supports data abstraction. In C++, the class is the tool that supports data encapsulation, and the object is the implementation of data encapsulation. The process-oriented programming method is different from the object-oriented programming method in treating the relationship between data and function.

In object-oriented programming, the data and the functions that legally operate the data are encapsulated as the definition of a class, and the data will be hidden in the wrapper, which exchanges information with the outside world through the operation interface. The object is stated to have a variable of a given class, which is similar to the structure in C language. The structure can be defined in C language, but this structure contains data rather than functions. Classes in the C++ language are wrappers for data and functions. In C++, a structure can be used as a special class. Although it can contain functions, it has no private or protected members.

2. The C++ class contains private, public and protected members. The C++ class can define three different access control permissions. One is the private (Private) member, which can only be accessed by the function specified in the class, while the functions outside the class cannot access the private member; the other is the Public member, which can also be accessed outside the class and become the interface of the class; the other is the Protected member, which can only be accessed by the derived class of the class, and the rest cannot be accessed outside the class.

3. In C++ language, objects are processed by sending customs messages. In C++, objects are processed by sending customs messages to objects. Each object decides the action to be taken according to the nature of the received message in response to the message. Responding to these messages is a series of methods that are defined using functions in the class definition and send messages to an object using a mechanism similar to function calls.

4. C++ allows friends to destroy private members of an encapsulated class. Generally, no functions outside the class are allowed to access it, but friends can break this prohibition by accessing private members of the class (including data members and member functions). A friend can be a function defined outside a class or an entire class defined outside a class. The former is called a friend function, and the latter is called a friend class. Friend breaks the encapsulation of the class, which is another important object-oriented animal of C++ language.

5. C++ allows function names and operators to overload C++ supports polymorphism. C++ allows the same identifier or operator to represent functions of different implementations, which is called identifier or operator overloading. Users can define identifier overloading or operator overloading as needed.

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6. C++ supports single inheritance and multiple inheritance in inherited C++. A class can generate derived classes as needed. The derived class inherits all the methods of the base class, and the derived class itself can define the required new methods that are not included in the parent class. Each object of a subclass contains data members inherited from the parent class and its own unique data members.

7. C++ language supports dynamic binding. Virtual functions can be defined in C++ to support dynamic binding. What we are talking about is C++ 's support for some major features of object-oriented programming. C++ lexical and lexical rules 1. C++ character set characters are some of the smallest symbols that can be distinguished. The character set of C++ consists of uppercase and lowercase letters (Amurz and Amurz), data characters (0-9), and special characters (spaces,! , #,%, ^, &, *, _,?,\,).

Thank you for your reading. the above is the content of "how to realize the object-oriented programming method of C++". After the study of this article, I believe you have a deeper understanding of how to realize the object-oriented programming method of C++. The specific use also needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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