直接贴书里原文，讲的很清楚了

As we’ve seen, functions declared in an inner scope do not overload functions declared in an outer scope (§ 6.4.1, p. 234). As a result, functions dened in a derived class do not overload members dened in its base class(es). As in any other scope, if a member in a derived class (i.e., in an inner scope) has the same name as a base-class member (i.e., a name dened in an outer scope), then the derived member hides the base-class member within the scope of the derived class. The base member is hidden even if the functions have different parameter lists:

【 在 KingPillar 的大作中提到: 】
: class Base
: {
: public :
: ....................

- 来自「最水木 for iPhone Xr」
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FROM 111.197.6.*