抽象类示例
源程序：
#include <iostream>
using namespace std;
class A{
private:
int a;
public:
virtual void print()=0;
void func1(){
cout<<"func1"<<endl;
}
};
class B:public A{
public:
void print();
void func1(){
cout<<"B_func1"<<endl;
}
};
void B::print(){
cout<<"B_print"<<endl;
}
int main(){
//A a;
//A *p = new A;
//A b[2];
A *pa;
A *pb = new B;
pb->print();
B b;
A *pc = &b;
pc->func1();
return 0;
}
运行结果：
