#include<iostream>
using namespace std;
class MyClass //声明类MyClass
{
private:
int x, y;
public:
MyClass(){x=0; y=0;} //构造函数1
MyClass(int a, int b){x=a; y=b;} //声明构造函数2
void display(){cout<<"x= "<<x<<", y= "<<y<<endl;}
};
int main()
{
MyClass s(2, 2), *p;
p = &s;
s.display();
p->display();
return 0;
}