# C++类的深拷贝与浅拷贝
```
#include<iostream>
using namespace std;
class Person
{
public:
Person()
{
cout << "Person默认构造函数调用" << endl;
}
Person(int age, int height)
{
cout << "Person有参构造函数调用" << endl;
m_Age = age;
m_Height = new int(height);
}
Person(const Person & p)
{
cout << "Person拷贝构造函数调用" << endl;
//m_Height = p.m_Height; 编译器默认实现这个代码
//深拷贝操作
m_Height = new int(*p.m_Height);//*p.m_Height 解引用，得到参数存储的内存地址
}
//浅拷贝带来堆区的重复释放
~Person()
{ //析构代码, 将堆区开辟数据做释放操作
if (m_Height != NULL)
{
delete m_Height;
//放置野指针的出现，先置空
m_Height = NULL;
}
cout << "Person析构函数调用" << endl;
}
int m_Age;
int *m_Height; //身高
};
void test01()
{
Person p1(18, 160);
cout << "p1的年龄为: " << p1.m_Age << "身高为: " << *p1.m_Height << endl;
Person p2(p1);
cout << "p2的年龄为: " << p1.m_Age << "2身高为: " << *p1.m_Height << endl;
}
int main()
{
test01();
system("pause");
return 0;
}
```
