What is C? What is C++?

C plus plus is c++. C++, commonly pronounced as "C plus plus" in programmer circles in mainland China and "C plus plus" in the West, is a widely used computer programming language. C++ is a general-purpose programming language that supports multiple programming paradigms with static data type checking. It supports various programming styles such as procedural programming, data abstraction, object-oriented programming, icon creation, and generic programming, etc. C++ is an inheritance of C, which allows for procedural programming in C, object-based programming featuring abstract data types, and object-oriented programming featuring inheritance and polymorphism. C++ specializes in object-oriented programming as well as procedural programming, and is therefore suitable for a wide range of problem sizes, from small to large, and possesses not only the pragmatic features that make computers run efficiently, but is also dedicated to improving the quality of programming for large-scale programs and to improving the problem description capabilities of the programming language.

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C++'s Language features:1. Support for data encapsulation and data hidingIn C++, classes are tools that support data encapsulation, and objects are implementations of data encapsulation.C++ supports data encapsulation and data hiding by creating user-defined classes. In object oriented programming, data and functions that perform legal operations on that data are encapsulated together as a class definition. Objects are described as variables with a given class. Each object of a given class contains a number of private, public, and protected members as defined by that class. Once a well-defined class is created, it can be viewed as a fully encapsulated entity that can be used as a whole unit. The actual inner workings of the class are hidden, and the user of a well-defined class does not need to know how the class works, as long as he knows how to use it.2. Inheritance and reuse support in C++ can be declared on the basis of existing classes of a new type, which is the idea of inheritance and reuse. Through inheritance and reuse can be more effective in organizing the program structure, clear relationships between classes, and make full use of existing classes to complete more complex, in-depth development. A newly defined class is a subclass and becomes a derived class. It can inherit all non-private attributes and methods from the parent class as its own members.3. Support for polymorphism uses polymorphism to specify expressive behavior for each class. Polymorphism forms a tree structure consisting of parent classes and their subclasses. Each subclass in this tree can receive one or more messages with the same name. When a message is received by an object of one of the classes in the tree, the object dynamically determines a certain usage of the message given to the subclass object. This property of polymorphism allows the use of high-level abstraction. The combination of inheritance and polymorphism makes it easy to generate a series of objects that are similar but unique. Because of inheritance, these objects *** enjoy many similar characteristics. Due to polymorphism, one object can have a unique way of behaving while another object has another way of behaving.

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