CPlusPlusThings/friend/friend_class.cpp
2019-08-06 15:30:17 +08:00

29 lines
279 B
C++

#include <iostream>
using namespace std;
class A
{
public:
A(int _a):a(_a){};
friend class B;
private:
int a;
};
class B
{
public:
int getb(A ca) {
return ca.a;
};
};
int main()
{
A a(3);
B b;
cout<<b.getb(a)<<endl;
return 0;
}