(C + + is the inheritance of C language. It can carry out procedural programming of C language, object-based programming characterized by abstract data types, and object-oriented programming characterized by inheritance and polymorphism. Design. While C + + is good at object-oriented programming, it can also carry out process based programming, so c + + can adapt to the size of the problem. C + + not only has the practical characteristics of efficient computer operation, but also strives to improve the programming quality of large-scale programs and the problem description ability of programming language.)