a1.cpp

来自「c++模板小实验」· C++ 代码 · 共 31 行

#include <iostream.h>
class point
{int x,y;
 public :
 point(int a,int b)
 {x=a;
  y=b;}
 void print()
 {cout<<"point:"<<x<<","<<y<<endl;}
 point operator++()
 {++x;
  ++y;
 return *this;
 }
 point operator--()
 {--x;
  --y;
 return *this;
 }
};
 void main()
 {point p(4,5);
  p.print();
  --p;
  p.print();
  ++p;
  p.print();
 }