C++ 动态分配对象数组

#include<iostream>
using namespace std;

class MyClass{
	int x, y;
public:
	MyClass(){}
	void setvalue(int x1, int y1){x=x1; y=y1;}
	void display()
	{
		cout<<"("<<x<<","<<y<<")"<<endl;
	}
};

int main()
{
	MyClass *p=new MyClass[3];
	p[0].setvalue(1,2);
	p[1].setvalue(2,3);
	p[2].setvalue(3,4);
	p[0].display();
	p[1].display();
	p[2].display();
	delete[3] p;
	return 0;
}