1.题目如下:
2.来吧,展示:
Coordinate.h
class Coordinate
{
public:
Coordinate();
~Coordinate();
public:
int m_iX;
int m_iY;
};
Coordinate.cpp
#include <iostream>
#include "Coordinate.h"
using namespace std;
Coordinate::Coordinate()
{
cout << "Coordinate" << endl;
}
Coordinate::~Coordinate()
{
cout << "~Coordinate" << endl;
}
demo.cpp
#include <iostream>
#include "Coordinate.h"
#include <stdlib.h>
using namespace std;
int main(void)
{
//从堆中实例化
Coordinate *p1 = NULL;
p1 = new Coordinate;
Coordinate *p2 = new Coordinate();
p1->m_iX = 10;
p1->m_iY = 20;
(*p2).m_iX = 30;
(*p2).m_iY = 40;
cout << p1->m_iX + (*p2).m_iX << endl;
cout << p1->m_iY + (*p2).m_iY << endl;
delete p1;
p1 = NULL;
delete p2;
p2 = NULL;
system("pause");
return 0;
}
3.运行结果如下:
4.注意我们是从堆中实例化对象的,需要最后销毁掉
5.//从栈中实例化
//通过p2操作p1
//从栈中实例化
Coordinate p1;
//通过p2操作p1
Coordinate *p2 = &p1;
p2->m_iX = 10;
p2->m_iY = 20;
(*p2).m_iX = 10;
cout << p1.m_iX << endl;
cout << p1.m_iY << endl;
6.运行结果如下:
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