example22.cpp

来自「Advanced Internet Programming Lecture 2 」· C++ 代码 · 共 35 行

#include <iostream>
using namespace std;

class base1 {
protected:
  int x;
public:
  void showx() { cout << x << "\n"; }
};

class base2 {
protected:
  int y;
public:
  void showy() {cout << y << "\n";}
};

// Inherit multiple base classes.
class derived: public base1, public base2 {
public:
  void set(int i, int j) { x=i; y=j; }
};

int main()
{
  derived ob;

  ob.set(10, 20); // provided by derived
  ob.showx(); // from base1
  ob.showy(); // from base2

  return 0;
}