继承中的同名成员变量和函数

同名成员函数

#include <iostream>
using namespace std;

class A
{
public:
int a;
int b;
public:
void get()
{
cout<<"b "<<b<<endl;
}
void print()
{
cout<<"AAAAA "<<endl;
}
protected:
private:
};

class B : public A
{
public:
int b;
int c;
public:
void get_child()
{
cout<<"b "<<b<<endl;
}
void print()
{
cout<<"BBBB "<<endl;
}
protected:
private:
};

int main()
{
B b1;
b1.print();

b1.A::print();
b1.B::print(); //默认情况

return 0;
}






同名成员变量
#include <iostream>
using namespace std;

class A
{
public:
int a;
int b;
public:
void get()
{
cout<<"b "<<b<<endl;
}
void print()
{
cout<<"AAAAA "<<endl;
}
protected:
private:
};

class B : public A
{
public:
int b;
int c;
public:
void get_child()
{
cout<<"b "<<b<<endl;
}
void print()
{
cout<<"BBBB "<<endl;
}
protected:
private:
};

//同名成员变量
int main()
{

B b1;
b1.b = 1; //修改的是子类的b
b1.get_child();
b1.get();

b1.A::b = 100; //修改父类的b
b1.B::b = 200; //修改子类的b 默认情况是B

b1.get();
b1.get_child();

cout<<"hello..."<<endl;
return 0;
}