运行时多态

对立体图形周长怎么计算（用什么函数）？要求实现运行时的多态性。

How to calculate the circumference of the three-dimensional graphics ( what function )? Required to achieve runtime polymorphism .

介绍了实现运行时的多态性几个重要因素&虚函数、基类和派生类。

In this article , the important factor of realization running polymorphism ( virtual functions , base class ; derived class ) .

C++语言支持两种多态性：编译时的多态性和运行时的多态性，本文分别给予详细介绍。

C + + language supports two kinds of Polymorphism : static polymorphism and dynamic polymorphism . This text offers the detailed introduction separately .

本文分析了C++中的两种多态性：编译时的多态性和运行时的多态性，通过函数重载和虚函数对其进行了探讨，指出了虚函数是实现动态联编的关键。

This article analyses two kinds of polymorphism : polymorphism in compiling and polymorphism in running . It argues the two kinds of polymorphism through function overloading and virtual function and points out that virtual function is the crucial technology of realizing dynamic binding .

运行时概念习语对这种支持进行了扩展，其允许不修改具体类型的情况下以运行时多态的方式表现。

The Runtime concept idiom extends this support by allowing unmodified concrete types to behave in a runtime polymorphic manner .