#include <iostream> using namespace std; class A1{ public: void show1() { cout << "class A1" << endl; } }; class A2 : public A1{ void show2() { cout <<"class A2" << endl; } }; class A3 : protected A2 { void show3() { cout << "class A3"<< endl; } }; int main() { A1 obj1; A2 obj2; A3 obj3; obj1.show1(); //合法 obj2.show1(); //合法 obj3.show1(); //非法 obj3.show3(); //非法 return 0; }
A1 : show1() public
A2 : show1() public show2() private
A3 : show1() protected show2() private show3() private
众所周知,类的保护成员函数、私有成员函数不能直接从外部调用,所以最后两个调用是非法的
标签:调用,继承,private,show1,A1,合法,public,show2 From: https://www.cnblogs.com/uacs2024/p/18053497