公共嵌套类和常规类之间有什么区别吗？ [英] Is there any difference between a public nested class and a regular class?

问题描述

假设我有：

class A {

public:
    class B {

    };

};

这个公共嵌套类和只是一个普通B类有什么区别cpp文件，除了A :: B必须在第一个选项中使用的事实。

Is there any difference between that public nested class and just a regular B class which is defined in its own cpp file, except for the fact that A::B must be used in the first option?

推荐答案

，除了 A :: B 是 A 的成员，因此具有对私人成员的所有访问权限 A 任何其他成员都会有。

There is essentially no difference, except that A::B is a member of A, and so has all the access rights to private members of A that any other member would have.

这篇关于公共嵌套类和常规类之间有什么区别吗？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！