说明:标识类或接口的所有已声明成员的集合。不包括继承成员。
Identifies the set of declared members of a class or interface. Inherited members are not included.
任何用protected关键字声明的成员只对定义它的类型,包括其实例和任何继承类型可见。
Any member declared with the protected keyword is visible only to the defining type, including other instances of the same type and any derived types.
类的成员包括在类中声明的所有成员,以及在该类的继承层次结构中的所有类中声明的所有成员(构造函数和析构函数除外)。
A class's members include all the members declared in the class, along with all members (except constructors and destructors) declared in all classes in its inheritance hierarchy.
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