test.cpp

使用c++简单实现ATM自动提款机

#include<iostream>

class A {
  
  public:
  //A();
  A(int,int);
  virtual void show(){ cout<<x<<endl; } 


private:
    int x;
    int y;  
};
//A::A(){x=0,y=0;}
A::A(int i,int j){ 
                 
                 x=i;
                 y=j;}

//virtual void A::show()

//  Class B
class B : public A {
 
public:
 
  B(int ,double);
  void show();

  private:

  int u;
  double v;
             
};
B::B(int i,double t):A(0,0){   
                        A(i,t);
                        u=i; 
                        v=t;}
void B::show(){   
                   cout<<u<<endl;}

int main(){
  A a(10,9);
  B b(8,7.8);
 b.show();
 a.show();
return 0;

}